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9

SANITATION PROCEDURE FOR INSTALLATION  

AND BULB REPLACEMENT:

HOW TO DISINFECT A WATER SYSTEM:

Every new well, or existing water supply system that has been disrupted for service or repair, should be  

disinfected before it is returned to use. Water in the well and storage tank should be treated with a strong  

chlorine solution to destroy disease causing organisms.  All pipelines and fixtures in the distribution system 

should be rinsed and flushed with chlorinated water.  Upon installation of a U.V. disinfection unit or yearly 

bulb replacement service, disinfection with chlorine to initially flush the system is recommended to assure line 

sanitation prior to U.V. start up.

The source of chlorine can be ordinary household liquid laundry bleach (about 5.25% available chlorine).  The 

quantity required depends on the volume of water to be treated.  The United States Environment Protection 

Agency (EPA) indicated that about 100 parts of chlorine, by weight, mixed in a million parts of water will 

destroy essentially all water-borne disease organisms.  Table 1 shows the quantity of liquid bleach required to 

disinfect wells of various diameters and depths.  

DISINFECTION PROCEDURE:
DRILLED WELLS:

Remove the well cap or seal from the casing and measure the depth of the water in the well, then refer to 

Table 1 to determine how many chlorine pellets should be used.  In some instances removing the seal to 

measure the water can be a difficult task, and it is easier to estimate well and water depth from well log or 

other records.  Determine if there is an unobstructed path from the top of the well to the water level. If it is not 

possible to remove the well cap, remove vent or sanitation access plug.

Drop one pellet into the well and listen to hear if it hits the water.  If the pellet hits the water, drop one-half the 

number of pellets determined to be needed into the well.  These will sink to the bottom and sanitize the lower 

part of the well.

Mix the remaining pellets in a few gallons of water in a CLEAN plastic container and pour the solution into 

the well.

In order to mix the chlorine thoroughly throughout the entire water system, it is necessary to recirculate the 

water in the well.  This can be accomplished by connection of a hose to an out side faucet that is located after 

the pressure tank.  Use the hose to run water back down the well (this also rinses  upper portion of well).  After 

about 15 minutes of recirculation of the water, a strong chlorine odor should be apparent.  Turn off hose.

Bypass water softener and filters and open each water outlet in the water system until chlorine is  

 

present in water.  This procedure assures that all the water in the system is chlorinated.

Summary of Contents for DWS-8C

Page 1: ... to NSF Standards 55 for the disinfection of microbiologically contaminated water that meets all other public health standards This system is not intended for treatment of water that has an obvious contamination source such as raw sewage nor is this system intended to convert wastewater to microbiologically safe drinking water This system is intended to be installed on visually clear water If this...

Page 2: ...nded to convert wastewater or raw sewage to drinking water The system is intended to be installed on visually clear water NSF ANSI 55 defines wastewater to include human and or animal body waste toilet paper and any other material intended to be deposited in a receptacle designed to receive urine and or feces blackwaste and other waste materials deposited in plumbing fixtures greywaste If this sys...

Page 3: ...utor may cause an unsafe condition 7 Intended for indoor use Do not install this disinfection system where it will be exposed to the weather Do not store this disinfection system where it will be exposed to temperature below freezing unless all the water has been drained from it and the water supply has been disconnected 8 Read and observe all the important notices and warnings on the water disinf...

Page 4: ... gpg Color None Iron 0 3 ppm Manganese 0 05 ppm pH 6 5 9 5ppm Important Note Pre filtration equipment may be required if these parameters cannot be maintained Flow rate must not exceed rated capacity of the unit DESCRIPTION OF EQUIPMENT The DWS C Series are of unique design with an ultraviolet germicidal lamp housed within a single quartz sleeve surrounded by a stainless steel pressure chamber The...

Page 5: ... ALL TIMES 1 Always disconnect electrical power to any U V unit before servicing 2 Under no circumstances should personnel look at a U V lamp in operation 3 U V disinfection units must always be properly grounded INSTALLATION The DWS C Series are always placed after the pressure tank and any other type of treatment devices i e softeners filters These units are normally installed in a vertical posi...

Page 6: ...rubber part of the flow control is facing outward from the port selected Simply hand press or slightly tap in the flow control until it seats on the inside ledge of the machined port 3 Using the mounting bracket provided secure unit to wall or other surface Make sure to allow enough room to install replace and clean the quartz sleeve and bulb Installing a water shut off valve before and after the ...

Page 7: ...for proper seal Once you complete checking the unit reassemble O Ring and tighten gland nut Repressurize the unit and check again REQUIREMENTS FOR CLEANING THE QUARTZ SLEEVE As water passes through the U V minerals debris and other matter in the water may deposit onto the quartz sleeve After sufficient film has formed on the quartz sleeve the ability of the ultraviolet germicidal rays to pass thou...

Page 8: ...me the U V lamp has undergone a photochemical change While the lamp will not normally be burned out the lamp quartz may no longer emit the 254 nm shortwave U V to effectively kill bacteria Failure to replace the U V lamps every 9 000 hours may cause bacteriological breakthrough Should the use of the disinfec tion unit be intermittent in no case should the U V lamp be used for more than 24 months r...

Page 9: ...ure the depth of the water in the well then refer to Table 1 to determine how many chlorine pellets should be used In some instances removing the seal to measure the water can be a difficult task and it is easier to estimate well and water depth from well log or other records Determine if there is an unobstructed path from the top of the well to the water level If it is not possible to remove the ...

Page 10: ...the chlorine solution Mix thoroughly by circulating the water back into the well and use the hose to rinse the interior lining of the well Do not try to disinfect an unprotected unlined well because new seepage or surface contamination will flow into the water about as fast as you can disinfect it Disinfect the pipeline distribution system as indicated for drilled wells SPRINGS AND CISTERNS Mix ab...

Page 11: ...diameter with estimated to be less than 80 feet deep 1 gallon should be used for similar size wells with water deeper than 80 feet In case of a well yielding more than 50 gallons per minute special procedures are required Seek the advice of a certified water treatment specialist Wait a day or two before you have another sample tested Do not take a sample for testing if the odor of chlorine is stil...

Page 12: ... or 200 pellets or 8 oz To produce a 400 P P M chlorine concentration to sanitize a water system use one half 1 2 pound chlorination pellets for each 100 gallons of water in the system 1 2 lb 100 gal 8 oz 100 gal 200 pellets 100 gal 1 cup pellets 100 gal Table 1 shows how many pellets too use per 100 feet of water in various diameter wells 2 3 4 5 6 8 10 12 24 36 0 1 5 0 3 0 0 6 0 0 8 0 0 12 0 1 5...

Page 13: ...egulator or above 120 volts Line cord disconnected Check replace or outlet defective Defective U V lamp Replace Defective lamp ballast Check output voltage Replace ballast Loose open circuit wire Trace out and repair Leak at quartz nipple Defective or cracked O Ring Replace O Ring O Ring not seated properly Replace O Ring ...

Page 14: ...14 1 2 3 4 5 6 Key Pad 1 System Status Indicater Lamp 2 Alarm Status Indicater Lamp 3 System Display Screen 4 Curser Direction Keys 5 Escape Back Key 6 Enter Key Electronic Controls Setup ...

Page 15: ...15 Monitor System Setup can be set from 75 to 100 in 3 increments ...

Page 16: ...al obstruction between quartz and probe Dirt or stain build up on lens Clean with denatured alcohol Bulb temperature too high Run water to nearest drain 140 F through U V to allow the unit to reach optimum temperature for the U V bulb 104 F Ballast temperature Check ballast temperature too extreme If greater than 160 F replace ballast Impaired quartz sleeve Clean and or replace U V bulb output too...

Page 17: ...roval by Aqua Treatment Service Inc the Dealer Distributor should return the item to Aqua Treatment Services Inc 194 Hempt Road Mechanicsburg PA 17050 prepaid If a part proves to be defective it will be repaired or replaced and returned to the Dealer Distributor freight paid It is the dealer customer responsibility to reinstall any components which require replacement under warranty No labor will ...

Page 18: ...e bottle or sterile container being used Holding the cap in a down position the operator should then hold his breath while taking the sample so as to avoid oral contamination of the sample The operator must not allow his finger to touch the inside of the cap or the neck of the bottle 4 After the sample has been taken the cap should immediately be tightly placed on the sample container 5 The sample...

Page 19: ...19 WIRING DIAGRAMS ...

Page 20: ...20 ...

Page 21: ...21 DRAWINGS AND PART NUMBERS ...

Page 22: ...22 DWS 8C Explosion ...

Page 23: ...ATS 4010 Socket w Wire 2 9 ATS N1156 Brass Shroud 2 10 ATS 7030 Grommet for wire assy in shroud 2 11 ATS 4000 Power Cord 1 12 ATS 6L1 Strain Relief for power cord 1 13 ATS1 421 Ballast 120V 60Hz 1 14 DVGX80 8 gpm Flow Control 1 15 ATS6 608 Quartz Sleeve 1 16 ATS8 246 UV Lamp 1 17 ATS 6207 Cover w o Hole for Plastic Lens 1 18 ATS 7600 Plastic Sight Lens for cover 1 KITS ATS K08C DWS 8C Service Kit ...

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