Preparation - Tips

Clarke Sales / Backflow Prevention Device Tester

P.O Box 220114 Newhall Ca 91322

Design

Integrity

27899 Smyth Drive, Valencia Ca 91355

Phone (661) 294-0901 Fax (661) 294-1175

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Item	Tip
1	Have DWP check water shut-offs 1 week prior to shut-down.
2	Double check the flow direction that was ordered vs the desired flow direction against the certified prints prior to shut-down. Inspect the valve station to verify correct flow direction.
3	Ensure that the riser dimensions match the certified print. Ensure that the riser flanges straddle the centerline between the inlet and outlet flanges.
4	Ensure that you have a few spacer flanges available for each line size.
5	Ensure that system demand is at zero. Check the meter reading prior to shut-down to verify zero or near zero flow rate.
6	Flow the risers to clear debris prior to setting the valve station on the risers. Source to inlet POC should flow clear prior to setting the valve station.
7	Ensure that a method to create a 2-5 gpm demand on the valve station is available so that the ACVs can be set.
8	To be added at a later date
9	To be added at a later date
10	To be added at a later date

Questions or problems regarding this web site should be directed to clarkesales@sbcglobal.net.
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Last modified: 08/24/06.