I took the SWG plunge and had a Pentair IC-60 installed where the inline chlorine feeder was that the PB installed. I never used it and have been a TFP disciple / liquid chlorine user since to pool was opened 2 years ago.
Over the past week I have been having issues with the SWG shutting down after a few hours (I run the pump at night for 4-6 hours) due to low flow at pump RPMs up to 3000 (I started at 2100 and stopped testing at 3000 as at that point it seemed the problem wouldn't be low flow). After investigating I found that the magic plastics flapper style check valve that the PB installed on the heater/filter side of the inline chlorine feeder (and now just before the IC-60) is opening maybe 1/4 when the pump is on - even when the pump is at max RPM (3450). My questions are:
1. Should the flapper valve be mostly or fully open when the pump is running at full RPM?
2. How much should the valve open at say 2100 RPM - in other words should it be mostly open, 1/2 open, etc.?
3. Do I still need the check valve given that the inline chlorinator is no longer installed. The pool equipment is a few feet below the supply jets and returns (main drains, skimmers) on the pool and I need to shut the supply side drain and skimmer valves to clean the pump basket, filter, etc. to stop siphon flow. Since the supply and return piping are both below the pool I don't know if backflow through the return side piping would be possible when the pump is running / not running.
My plan is to take the valve apart, troubleshoot and maybe replace the internals but if I don't need the valve I will just remove the internals.
Thanks in advance for your help!
Over the past week I have been having issues with the SWG shutting down after a few hours (I run the pump at night for 4-6 hours) due to low flow at pump RPMs up to 3000 (I started at 2100 and stopped testing at 3000 as at that point it seemed the problem wouldn't be low flow). After investigating I found that the magic plastics flapper style check valve that the PB installed on the heater/filter side of the inline chlorine feeder (and now just before the IC-60) is opening maybe 1/4 when the pump is on - even when the pump is at max RPM (3450). My questions are:
1. Should the flapper valve be mostly or fully open when the pump is running at full RPM?
2. How much should the valve open at say 2100 RPM - in other words should it be mostly open, 1/2 open, etc.?
3. Do I still need the check valve given that the inline chlorinator is no longer installed. The pool equipment is a few feet below the supply jets and returns (main drains, skimmers) on the pool and I need to shut the supply side drain and skimmer valves to clean the pump basket, filter, etc. to stop siphon flow. Since the supply and return piping are both below the pool I don't know if backflow through the return side piping would be possible when the pump is running / not running.
My plan is to take the valve apart, troubleshoot and maybe replace the internals but if I don't need the valve I will just remove the internals.
Thanks in advance for your help!