مجموعة تكنولاب البهاء جروب

تحاليل وتنقية ومعالجة المياه
 
الرئيسيةالبوابةمكتبة الصورس .و .جبحـثالأعضاءالمجموعاتالتسجيلدخول
تنظيف وتطهير وغسيل واعادة تاهيل الخزانات


معمل تكنولاب البهاء جروب
 للتحاليل الكيميائية والطبية
والتشخيص بالنظائر المشعة
 للمخدرات والهرمونات والسموم
 وتحاليل المياه

مجموعة
تكنولاب البهاء جروب
لتصميم محطات الصرف الصناعى والصحى
لمعالجة مياه الصرف الصناعى والصحى
مجموعة تكنولاب البهاء جروب
المكتب الاستشارى العلمى
دراسات علمية كيميائية



معالجة الغلايات وانظمة البخار المكثف
معالجة ابراج التبريد المفتوحة
معالجة الشيللرات
مجموعة تكنولاب البهاء جروب
اسنشاريين
كيميائيين/طبيين/بكترولوجيين
عقيد دكتور
بهاء بدر الدين محمود
رئيس مجلس الادارة
استشاريون متخصصون فى مجال تحاليل وتنقية ومعالجة المياه
متخصصون فى تصنيع وتصميم كيماويات
معالجة الصرف الصناعى والصحى
حسب كل مشكلة كل على حدة
تصنيع وتحضير كيماويات معالجة المياه الصناعية
مؤتمرات/اجتماعات/محاضرات/فريق عمل متميز
صور من وحدات معالجة المياه


technolab el-bahaa group
TECHNOLAB EL-BAHAA GROUP
EGYPT
FOR
WATER
TREATMENT/PURIFICATION/ANALYSIS
CONSULTANTS
CHEMIST/PHYSICS/MICROBIOLIGIST
 
INDUSTRIAL WATER
WASTE WATER
DRINKING WATER
TANKS CLEANING
 
CHAIRMAN
COLONEL.DR
BAHAA BADR EL-DIN
0117156569
0129834104
0163793775
0174041455

 

 

 

تصميم وانشاء محطات صرف صناعى/waste water treatment plant design

technolab el-bahaa group
egypt
We are a consultants in water treatment with our chemicals as:-
Boiler water treatment chemicals
Condensated steam treatment chemicals
Oxygen scavenger treatment chemicals
Ph-adjustment treatment chemicals
Antiscale treatment chemicals
Anticorrosion treatment chemicals
Open cooling tower treatment chemicals
Chillers treatment chemicals
Waste water treatment chemicals
Drinking water purification chemicals
Swimming pool treatment chemicals
Fuel oil improver(mazote/solar/benzene)
technolab el-bahaa group
egypt
We are consultants in extraction ,analysis and trading the raw materials of mines as:-
Rock phosphate
32%-30%-28%-25%
Kaolin
Quartez-silica
Talcum
Feldspae(potash-sodumic)
Silica sand
Silica fume
Iron oxid ore
Manganese oxid
Cement(42.5%-32.5%)
Ferro manganese
Ferro manganese high carbon

 

water treatment unit design


 

وكلاء لشركات تركية وصينية لتوريد وتركيب وصيانة الغلايات وملحقاتها
solo agent for turkish and chinese companies for boiler production/manufacture/maintance

 

وكلاء لشركات تركية وصينية واوروبية لتصنيع وتركيب وصيانة ابراج التبريد المفتوحة

 

تصميم وتوريد وتركيب الشيللرات
design/production/maintance
chillers
ابراج التبريد المفتوحة
مجموعة تكنولاب البهاء جروب
المكتب الاستشارى العلمى
قطاع توريد خطوط انتاج المصانع
 
نحن طريقك لاختيار افضل خطوط الانتاج لمصنعكم
سابقة خبرتنا فى اختيار خطوط الانتاج لعملاؤنا
 
1)خطوط انتاج العصائر الطبيعية والمحفوظة والمربات
2)خطوط انتاج الزيوت الطبيعية والمحفوظة
3)خطوط انتاج اللبن الطبيعى والمحفوظ والمبستر والمجفف والبودرة
4)خطوط تعليب وتغليف الفاكهة والخضروات
5)خطوط انتاج المواسير البلاستيك والبى فى سى والبولى ايثيلين
6)خطوط انتاج التراى كالسيوم فوسفات والحبر الاسود
7)خطوط انتاج الاسفلت بانواعه
Coolمحطات معالجة الصرف الصناعى والصحى بالطرق البيولوجية والكيميائية
9)محطات معالجة وتنقية مياه الشرب
10)محطات ازالة ملوحة البحار لاستخدامها فى الشرب والرى
11)الغلايات وخطوط انتاج البخار الساخن المكثف
12)الشيللرات وابراج التبريد المفتوحة وخطوط انتاج البخار البارد المكثف
 
للاستعلام
مجموعة تكنولاب البهاء جروب
0117156569
0129834104
0163793775
 
القاهرة-شارع صلاح سالم-عمارات العبور-عمارة 17 ب
فلا تر رملية/كربونية/زلطيه/حديدية

وحدات سوفتنر لازالة عسر المياه

مواصفات مياه الشرب
Drinking water
acceptable
values

50

colour

acceptable

Taste

nil

Odour

6.5-9.2

ph

 

1 mg/dl

pb

5 mg/dl

as

50 mg/dl

cn

10 mg/dl

cd

0-100mg/dl

hg

8 mg/dl

f

45 mg/dl

N02

1 mg/dl

Fe

5 mg/dl

Mn

5.1 mg/dl

Cu

200 mg/dl

Ca

150 mg/dl

Mg

600 mg/dl

Cl

400 mg/dl

S04

200 mg/dl

Phenol

15 mg/dl

zn

 

 

الحدود المسموح به
ا لملوثات الصرف الصناعى
 بعد المعالجة
Acceptable
values
treated wate water
7-9.5

ph

25-37 c

Temp

40 mg/dl

Suspended solid

35 mg/dl

bod

3 mg/dl

Oil & grase

0.1 mg/dl

hg

0.02 mg/dl

cd

0.1 mg/dl

cn

0.5mg/dl

phenol

1.5 ds/m

conductivity

200 mg/dl

na

120 mg/dl

ca

56 mg/dl

mg

30 mg/dl

k

200 mg/dl

cl

150 mg/dl

S02

0.75 mg/dl

Fe

0.2 mg/dl

Zn

0.5 mg/dl

Cu

0.03 mg/dl

Ni

0.09 mg/dl

Cr

0.53 mg/dl

لb

0.15 mg/dl

pb

 





pipe flocculator+daf
plug flow flocculator
lamella settels

محطات تحلية مياه البحر بطريقة التقطير الومضى على مراحل
MSF+3.jpg (image)
محطات التقطير الومضى لتحلية مياه البحر2[MSF+3.jpg]
some of types of tanks we services
انواع الخزانات التى يتم تنظيفها
ASME Specification Tanks
Fuel Tanks
Storage Tanks
Custom Tanks
Plastic Tanks
Tank Cleaning Equipment
Double Wall Tanks
Septic Tanks
Water Storage Tanks
Fiberglass Reinforced Plastic Tanks
Stainless Steel Tanks
Custom / Septic
مراحل المعالجة الاولية والثانوية والمتقدمة للصرف الصناعى

صور مختلفة
من وحدات وخزانات معالجة الصرف الصناعى
 التى تم تصميمها وتركيبها من قبل المجموعة

صور
 من خزانات الترسيب الكيميائى والفيزيائى
 لوحدات معالجة الصرف الصناعى
المصممة من قبل المحموعة



technolab el-bahaa group


technolab el-bahaa group


technolab el-bahaa group

technolab el-bahaa group


technolab el-bahaa group


technolab el-bahaa group


technolab el-bahaa group


technolab el-bahaa group


technolab el-bahaa group


technolab el-bahaa group




مياه رادياتير اخضر اللون
بريستول تو ايه
انتاج شركة بريستول تو ايه - دمياط الجديدة
مجموعة تكنولاب البهاء جروب

اسطمبات عبوات منتجات شركة بريستول تو ايه-دمياط الجديدة

مياه رادياتير خضراء فوسفورية

من انتاج شركة بريستول تو ايه 

بترخيص من مجموعة تكنولاب البهاء جروب


زيت فرامل وباكم

DOT3



شاطر | 
 

 الاجراءات المتبعة لتطهير وتعقيم الابار الجوفية المعدة لانتاج وتعبئة المياه الطبيعية والمعدنية

استعرض الموضوع السابق استعرض الموضوع التالي اذهب الى الأسفل 
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عدد المساهمات : 3567
تاريخ التسجيل : 15/09/2009
العمر : 49
الموقع : مصر

مُساهمةموضوع: الاجراءات المتبعة لتطهير وتعقيم الابار الجوفية المعدة لانتاج وتعبئة المياه الطبيعية والمعدنية   الجمعة فبراير 13, 2015 1:48 am

Well and Water System Disinfection For Private Wells


This fact sheet contains a step-by-step procedure for performing a simple disinfection of private wells and water (plumbing) systems using chlorine bleach (sodium hypochlorite).


Please read the entire fact sheet before starting any well disinfection.


If you are not comfortable with this procedure, or for complex water systems or severe contamination problems, a licensed well contractor or pump installer can disinfect your well and water system for you.




What is Disinfection?
What Causes Well and Water System Contamination?
How Often Should a Well be Tested?
Procedure for collecting a water sample
When Should a Well Be Disinfected?
Safety Precautions
Procedure for Disinfection of the Well and Water System
STEP 1 - Isolate critical water system components
STEP 2 - Mixing a chlorine solution
STEP 3 - Electrical safety
STEP 4 - Opening the well
STEP 5 - Adding chlorine to the well
STEP 6 - Recirculating chlorinated water
STEP 7 - Bringing chlorinated water to each faucet
STEP 8 - Removing the chlorinated water
STEP 9 - Reconnecting water softeners and other water treatment devices
STEP 10 - Testing your water
Procedure for Disinfection of Water Softeners, Water Treatment Equipment, and Water Using Devices
1. Water Softeners
2. Water Filters
3. Reverse Osmosis (RO) Systems




What is Disinfection?


Contaminated drinking water may contain harmful bacteria, viruses, or other microorganisms that can make you sick.


Disinfection is one process of killing or inactivating microorganisms to make water safe for drinking.


Disinfection can also eliminate nuisance bacteria that can cause unpleasant tastes and odors.


What Causes Well and Water System Contamination?


A well or water system may become contaminated with harmful bacteria and other organisms when the well or plumbing is open to the environment during construction, repair, or routine maintenance.


A well may also become contaminated if the well casing is deteriorated or damaged, or if the well is flooded.


Contamination problems can also be caused by improper plumbing connections between water treatment devices and wastewater piping, between the potable water plumbing and heating/cooling systems, or other cross connections.


How Often Should a Well be Tested?


Typically, a well should be tested once a year for “coliform bacteria,” or whenever there are changes in the water’s taste, odor, or appearance.


The coliform bacteria test analyzes for a number of bacterial species.


 Most of these are not harmful, but a few are.


Their presence indicates that surface contamination has found its way into the well, and disease organisms may also be present.  


The presence of E. coli or fecal coliform represents a more serious health risk and any water use should be strictly limited to nonpotable uses (not used for drinking, cooking, or human contact).


Water samples should be analyzed for coliform bacteria by a laboratory that has been certified by the Minnesota Department of Health (MDH) or by contacting the MDH Well Management Section. 




Check with the water testing laboratory about the procedure for collecting water samples and how long the samples are accepted for testing.


Chlorine must be absent prior to taking a water sample for bacterial testing.


Be aware that any amount of chlorine left in the system may erroneously result in a negative coliform bacteria test. 






Procedure for collecting a water sample:


►Collect a water sample from a regularly used cold water faucet.


If possible, collect the sample from a solid faucet rather than a swing faucet or a pull out type of faucet.


►Remove the screen aerator from the end of the faucet and let the cold water run at medium force for at least five minutes prior to filling the bottle.


►Have the water sample tested for coliform bacteria by a MDH-certified lab. Follow the instructions provided by the lab for collection of the water sample.


If the water sample shows the presence of coliform bacteria, the well and water system needs to be disinfected and the water should not be used for drinking, food preparation, making ice, brushing teeth, or dishwashing until the bacteria are eliminated.


When Should a Well Be Disinfected?


Well disinfection should be performed:


When water testing indicates the presence of coliform bacteria.
When the well has been near flood waters.  


After installation or repair of plumbing pipes and fixtures, e.g., softeners, faucets, and filters.
After well or pump repairs.


When iron or sulfur bacteria reduce the water supply capacity of the well or cause taste and odor problems.
During startup of seasonal wells where plumbing, wells, or pumps have been disconnected, or the water system has otherwise been drained or opened.
Well disinfection will not solve the following problems:


When contamination is originating from a continuous source such as a septic system or an animal feedlot.


When a well or plumbing system is improperly constructed, located, or damaged and in need of repair (disinfection should follow repair work).


If the contaminant is nitrate, arsenic, fuel, pesticides, or other chemicals.




Safety Precautions


ELECTRICAL SAFETY


EXTREME CAUTION is advised when disinfecting a well, as you often will be working with electricity and water.


Electricity can kill you.  


If you are not acquainted with working with electricity, seek professional advice.


Your safety precautions should include: Electrocution Safety Risk


Turn off the pump circuit breaker before removing the well cap and while working on the well.
While the breaker is off, examine for chafed wire insulation or missing wire nuts and repair as necessary.


Wear rubber soled shoes or boots, preferably waterproof.


CHEMICAL SAFETY


Severe eye damage may result from contact with bleach or chlorine solution.


Always follow the manufacturer’s use and safety directions.


Avoid eye and skin contact. Wear protective goggles or a face shield and rubber gloves when working with the bleach or chlorine solution.  


Handle and dispose of chlorine with care.
Do not mix chlorine with other chemicals, as mixing chemicals may form harmful gases.


Do not leave bleach bottles lying around – ingestion of bleach is the most common cause of poisoning of children in the U.S.


RESPIRATORY SAFETY


Underground well pits pose an extreme hazard, as they frequently contain a build-up of toxic gases or simply lack enough oxygen to sustain life.


Access is limited, making quick escape difficult.


If your well is located in an underground well pit, DO NOT ENTER IT.


Death can occur even in a shallow well pit.
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عدد المساهمات : 3567
تاريخ التسجيل : 15/09/2009
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مُساهمةموضوع: رد: الاجراءات المتبعة لتطهير وتعقيم الابار الجوفية المعدة لانتاج وتعبئة المياه الطبيعية والمعدنية   الجمعة فبراير 13, 2015 1:48 am

Procedure for Disinfection of the Well and Water System


The following procedure is for a well that has a submersible pump with either a removable well cap or a well seal with a threaded plug in it.


See STEP 4 to determine whether you have a well cap or a well seal.


If the well has a sanitary seal, this procedure can only be attempted if a removable threaded plug in the sanitary seal allows access into the well.


STEP 1 - Isolate critical water system components


   
Plumbing By Pass


►Bypass water softeners and other water system components, such as the dishwasher and the washing machine, that may be damaged by chlorine prior to initiating this well disinfection procedure.


Since water softeners, water filters, and other water treatment or water using devices may harbor organisms, it will be necessary to separately disinfect the softener and other devices.


Water treatment devices should be disinfected separately according to the information provided by the manufacturer or water conditioning contractor.


If this information is not available, see the section on disinfecting water treatment equipment and water using devices at the end of this fact sheet.


►Turn off and drain the water heater. Use caution to avoid scalds or burns. Follow procedures as described by the manufacturer or plumber.


   
STEP 2 - Mixing a chlorine solution


 
This table indicates the amount of laundry bleach (6.0 percent sodium hypochlorite or 5.7 percent available chlorine) that should be used for well disinfection.


Sodium hypochlorite is the disinfectant found in laundry bleach and is the recommended product for well disinfection.




Since bleach loses its disinfecting capacity over time it is important that a fresh container be used.


 Do not use laundry bleach that contains any fragrance or other additive.


►Place a large clean bucket near the well. Add 1 gallon of water and the amount of bleach indicated in the table and mix thoroughly.


For wells greater than 100 feet deep or with well casing diameters greater than 6 inches, mix the bleach with 2 gallons of water.


For wells greater than 200 feet deep or with well casing diameters greater than 6 inches, increase the amount of bleach proportionately.


After this solution is poured into the well, it will provide a chlorine concentration of at least 50 parts per million.


WARNING:  


If your well has not been disinfected for many years, it may have considerable scale built up.


Disinfecting with a strong chlorine solution can dislodge this scale and plug or damage your pump,
 and/or cause problems elsewhere in the plumbing system.


You may wish to begin with a weaker solution of chlorine. If the water runs red or brown, pump it out on the ground surface without recirculating it back into the well as described in STEP 6.


Once the color gets lighter, mix a new chlorine solution batch as described in STEP 2 and begin the process again.




In situations where an initial disinfection has not worked, where there is considerable iron or other solids in the well, or where there is a significant nuisance bacteria problem, a more concentrated chlorine solution may be used.


Multiply the quantities of chlorine listed in the table by four and mix with 4 gallons of water (for example, a 4-inch diameter well that is 51-100 feet deep would need 4 cups of bleach mixed with 4 gallons of water).


This will provide a chlorine concentration of at least 200 parts per million in the well and water system.


NOTE:  Too strong a chlorine solution will reduce the effectiveness of disinfection.


 If the chlorine concentration greatly exceeds 200 parts per million, it can actually make the water too alkaline and reduce the effectiveness of the disinfection process.
   
STEP 3 - Electrical safety


   
Electric Panel

►Turn off electrical power to the pump by turning off the circuit breaker or unscrewing the fuse. 


If the breaker or fuse box has a “lockout” hasp to prevent someone from accidentally turning on the water pump circuit breaker, use it.


Power should not be turned back on until STEP 6 or after the chlorine solution has been placed in the well.


   
STEP 4 - Opening the well


   
Step 4 - 1


Do not place well components directly on the ground.


Determine whether your well has a well cap or a well seal.


A well cap overlaps the top of the well casing and is held in place with bolts or set screws.


A sanitary seal fits tightly within the very top of the well casing.


Only a professional should remove a sanitary seal.


 If a well has a well cap, the discharge pipe from the well is usually underground.


If the well has a well seal, the discharge pipe from the well is usually through the top of the well. 


If you are unsure as to whether your well has a well cap or a well seal, you should seek professional advice. 


 
With electrical power off, open the well.


 


Step 4 - 2


►If your well has a well cap, remove the bolts along the outside edge of the top of the well cap for newer models, or loosen the set screws on the side of the cap for older models and lift off the cap. 


Gently lift the wires/wire nuts out and pull to the side. Do not pull on the release cable or pull the 
pipe for the pitless adapter and pump. Check for damaged wires/wire nuts. Be careful not to loosen any connections.


   
Discharge Pipe ►If your well has a well seal with a threaded plug, you can remove the plug and pour the chlorine solution through the hole.


If there is no threaded plug in the well seal, you should have the well disinfected by a licensed well contractor or licensed pump installer.


The well seal has bolts that compress the seal. Loosening the bolts too far may cause a portion of the seal or the pump to fall into the well.


Do not remove or loosen the bolts. Do not remove the well seal.


   
STEP 5 - Adding chlorine to the well


   
Step 5

►Pour the mixture into the well and avoid spilling on any wire connections. A funnel should be used for pouring the chlorine solution into small openings.


Be careful not to splash/spill the concentrated solution.


Wear gloves and goggles.


Do not use a siphon.


   
STEP 6 - Recirculating chlorinated water


   
Step 6

Recirculating the chlorinated water mixes the water column thoroughly and distributes the chlorine. 


It helps to wash down the inside sidewalls of the well casing, pump wires, and drop pipe.


►Turn on the power to the pump.


►Connect a clean garden hose to a nearby yard hydrant or an outside faucet. Run the water out of the hose in an area away from the well for approximately 10 minutes until the water runs clear.


You may notice that the water coming from the garden hose turns red, yellow, or brown.


This is due to the chlorinated water precipitating iron from the water.


The chlorinated water may also dislodge scale or rust from the sides of the well casing.


Scale, iron, manganese, or other precipitated minerals may form when the chlorine is added to the system.


These solids can cause clogging of faucet aerators, valves, water solenoids, and equipment using filters.


Run the water out on the ground until the water runs clear.


Additional chlorine solution may need to be added to the well.


Do not run discolored water through the household plumbing, and do not run it into a septic system.


Since a strong chlorine solution may harm vegetation, dispose of the chlorinated water away from sensitive plants.


Do not discharge water into a lake or stream as this may harm aquatic life.


►When the water coming from the garden hose is relatively clear, turn the water off, place the garden hose into the top of the well casing and run water into the well.


After the chlorine smell is first detected from the garden hose, recirculate the water back into the well for about two hours.


You can use chlorine test papers, such as those commonly used to check the chlorine in swimming pools, to provide a visual indication that chlorine is present.


►Turn off the power to the pump. Remove the garden hose from the well casing and replace the well cap or threaded plug in the well seal.


   
STEP 7 - Bringing chlorinated water to each faucet


   
Test Paper


► Turn on the power to the pump.


Run chlorinated water through the entire plumbing system by running water to each fixture* one at a time until you smell bleach (or use chlorine test papers available at pool supply businesses) and then close the fixture.


Do this for each fixture, including:


Cold and hot water faucets.


Toilets and shower/bath fixtures.


Any outside faucets or yard hydrants.


*Faucet aerators may need to be removed if clogging occurs from precipitated iron or loosened scale.


►Leave the chlorinated water in the system a minimum of two hours and preferably at least six hours or overnight.


WARNING:  


Chlorine can cause eye damage and skin irritation.


In addition to not using the water for consumptive purposes, all potential water users need to be warned that a potentially dangerous concentration of chlorine is in the water system.


Do not shower/bathe with water containing high levels of chlorine. You may wish to place a pail or bag over each faucet as a reminder.


   
STEP 8 - Removing the chlorinated water


   
 
►Run a garden hose from an outside faucet or yard hydrant to flush the chlorine out of the system. 


It can take 30 minutes to 24 hours or more to flush all of the chlorine from the well.


Do not run the chlorinated water into your septic system as this can kill many of the beneficial bacteria in the system.


Also, the amount of water required to flush the well may hydraulically overload and damage the septic system.


Since a strong chlorine solution may harm vegetation, dispose of the chlorinated water away from sensitive plants. Do not discharge water into a lake or stream as this may harm aquatic life.


►Once the chlorine is gone from the well, open up each fixture one at a time until the chlorine smell is no longer present.


This will purge the remaining chlorine from the water system.


It should take just a few minutes to flush out the chlorine from the cold water lines.


The hot water faucets will have to be run longer.


In some cases, it may be quicker to drain the water heater(s) again. The small amount of chlorinated water flushed from the water pipes can be run into a septic tank.


   
STEP 9 – Reconnecting water softeners and other water treatment devices


   
 
►Return bypass valves to “on” or “service” position after following the manufacturer’s directions to disinfect these devices.


►Refill the water heater if applicable.


►Start the water heater.


   
STEP 10 – Testing your water


   
Test Your Water Make sure the chlorine has been removed from the water system.


It is recommended that a sample be collected a couple days after the well is disinfected.


Do not use the water for drinking, cooking, or food preparation until it tests free of coliform bacteria.


Follow the procedure for collecting a water sample given on the first page of this fact sheet.




Procedure for Disinfection of Water Softeners, Water Treatment Equipment, and Water Using Devices


Water softeners, water treatment equipment, and water using devices, such as dishwashers and washing machines, may be damaged by excessive amounts of chlorine.


However, the softener and other devices should be disinfected when there are bacteria problems in the plumbing.


After step 8, follow the manufacturer’s instructions for disinfecting the particular unit you have.


If the disinfection information is unavailable, the following steps can be used, as recommended by the Water Quality Association, a not-for-profit international trade organization representing the household, commercial, industrial, and small community water treatment industry.


For further questions regarding this section, contact the association at 630-505-0160 or visit the Water Quality Association website.




1.  Water Softeners


   
Water Softener




►Keep unit on “bypass” until chlorine is flushed out of the system.


 To thoroughly disinfect the softener after all the chlorine is flushed from the system, add one-half cup bleach to the softener’s brine tank and run the unit through a regeneration cycle immediately.


   
2.  Water Filters


   
Water Filter ►For carbon filters and other cartridge water filters, remove and discard the old filter cartridge.


Wash the sump and head with laundry detergent and bleach and rinse. Insert a new cartridge filter.


►For whole-house carbon tank filters or a water softener that contains carbon, empty the entire media bed.  


Thoroughly clean the empty unit inside and out with a laundry bleach and water solution. Re-bed the unit using new carbon or other media/carbon mix.


   
3.  Reverse Osmosis (RO) Systems


   
Reverse Osmosis System

►Turn off the water supply to the RO unit and open the RO faucet to relieve pressure and drain the RO storage tank.


►Remove and discard the pre- and postfilters and remove the RO membrane element.


Clean and disinfect the filter sumps, the filter heads, and the RO membrane housing and end caps.


►Fill the first prefilter sump with water to within about 2 inches from the top and add 1 ounce (2 tablespoonfuls or 6 teaspoonfuls) of unscented laundry bleach (6.0 percent sodium hypochlorite or 5.7 percent available chlorine); carefully reassemble this first prefilter with the chlorine/water mixture but without its filter cartridge element in place.


►Reassemble all the remaining housings without their membrane element and filter cartridge elements in place.


►Open the water supply to the RO.


Open the RO faucet and allow water to run until you can begin to smell the chlorine bleach.


(If no chlorine bleach smell can be obtained, go back to bullet point three and increase the amount of laundry bleach added until a residual can be maintained throughout the system.)


►Close the RO faucet and allow the storage tank to fill and then remain full for 25-30 minutes.


►Open the RO faucet again and leave it open until the entire chlorine bleach smell is gone. Let the accumulated water in the RO storage tank drain completely.


►Turn off the water supply to the RO. Close the RO faucet after all the pressure has been relieved and the water flow stops.


►Install all new pre- and postfilter elements, using careful aseptic techniques so as to not recontaminate the RO system.


►Reinstall the RO membrane element in its housing. Fill the membrane element housing with water and 1 milliliter (20 drops) of laundry bleach. Reassemble this membrane element, chlorinated water, and housing unit.*


*CAUTION:  High levels of chlorine over an extended period of time can degrade polyamide thin film composite (TFC) RO membranes, although significant degradations should not occur in these specified few minutes of chlorine contact time.


►Immediately reopen the water supply to the RO system and reopen the RO faucet. Let water drip from the RO faucet until the chlorine bleach smell has dissipated.


►Finally, close the RO faucet, let the storage tank completely refill, and discard the first full tank of water following the completion of this procedure.
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