Hey all, I just got a liquidator after switching over to liquid chlorine, being tired of burning holes in my pool covers and, and wanting to be able to avoid daily maintenance.
Here is a picture of my installation.
It is 1 1/2" pipe into the 1HP/.5HP dual speed pump. It's on a flip switch, so it runs either 1 or .5 HP. Everything after the filter is 2" to increase flow before going back to 1.5" at the Y split for pool and spa.
After hooking up things as shown, I get a flow rate of 5 with the pump on either low or high as long as the OUT float valve is wide open. The problem I'm having is that with the check valve in place on Low I get no water coming into the Liquidator. I think the low back pressure in the pressure side piping is making it so I can't exceed the cracking pressure of the check valve that comes with the 3/8" upgrade kit. I tried removing the pressure side check valve using some spare tubing from the install and the LQ then settles at a flow rate of 2, but if I turn it off, all of the water flows back and I lose prime in my system, so that won't work.
I'm looking for ideas on how I might be able to get the LQ running on low, it runs fine on high. My thoughts are a) try to get a check valve with a lower cracking pressure like this on that says it's only .3psi http://www.usplastic.com/catalog/ite...6421&catid=489 (although the mfg is John Guest and so is the one that comes with the 3/8" kit and they look almost the same... is it the same?) b) move the point where I tap into the pressure line to a higher point, so that the tubing is all horizontal and maybe there's less pressure from the water in the liquidator (I have no idea if this would work) or c) replumb my pressure side with 1 1/2 inch pipe to reduce flow, and raise pressure enough to open the check valve (this would probably work, but man, what a PITA).
For now I'm just running my pump on high for a couple hours a day, to get the chlorine balance right. Trying to see if I can get this working on low without having to go get a programmable variable speed pump. Another option might be a timer that can control the manual 2 speed pump.
Any help is greatly appreciated.