Ok, I have taken this system over from a competitor so I don't know how many feet are in the water loop. There are apparently no drawings of the system from the previous tenant as well. I have spoken with Webtrol today and they state the Dole valve is the way to go.

I have a few questions though.

Running the pump today after purging all the air from the closed loop piping, the pump operated at 14 GPM.

After the discharge side of the pump it feeds a two banks of Mixed bed tanks, size 8"x44" in paralell (2) tanks each bank, then feeds a UV Unit 1' in and out, then a 30" 0.2 micron filter ,,,, (ALL PIPING IS 1" SCH 80 PVC)

The problem -- The pressure across the filter is only 20 PSI ,,,, How could this be?

Also, would it be wise to install a 1" Flowmeter after the 30" filter housing on the distribution side of the loop?

For that matter, also install a flowmeter on the return?

There is ample room for both.  Oil pumps

2011-07-20

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