Leaking from the backwash port in the filter position
I have a SP714 Vari-Flo XL Control Valve which is leaking (more than dripping) from the backwash port in the filter position. I'm wondering if this is something I can fix myself or if I need a complete new control valve (~ 100$) ?
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Re: Leaking from the backwash port in the filter position
It is not seated all the way try turnig to different positions several times if this does not work it probably sprocket wheel under handle assembly is bad or unseated make sure pump is off when changing positions
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Reference your pressure gauge as the 12:00 position. Going clockwise- 12:00 is Filter, normal running position 2:00 is Waste, water goes from pool and exits the waste line, bypassing filter. 4:00 is Closed, used only when servicing equipment 6:00 is Backwash, reverses water through the filter and goes out the waste line. 8:00 is Recirculate, water bypasses filter and returns to pool. 10:00 is Rinse, water goes through filter and exits to waste line, used briefly after backwashing to clear sediment from filter. Note that the "pointer," not the handle that you grab, indicates which setting you are on.
Backwash until water in the sight glass is clear, shut off the pump and change the valve setting to rinse, turn the pump on for a couple seconds and then back off, change the valve setting to filter and return to normal operation. NEVER move the valve handle while the pump is on.
IF your filter is really the EC75 that's listed in the heading, then it's not a sand filter, its a DE filter. See link to manual: http://www.haywardnet.com/products/Manuals/pdfs/Manual257.pdf
If this is not the correct number, then you can find the correct manual on their web site. So did it have a multi-port valve already? or did you install it. IF it is a sand filter then there is something plugged inside the filter (small fingers on spider?) If that's the case locate the manual on their web site and follow the assembly insturcitons.
Try these tips. I am guessing that one of these is the reason that your pool filter is not working properly. If you try these suggestions and they don't work, let me know and I will trouble shoot with you again.
1. Check skimmer and pump strainer baskets for debris.
2. Check for restrictions in intake and discharge lines.
3. Check for air leak in intake line (indicated by bubbles returning to pool.
4. Backwash your filter.
5. Be sure Vari-Flo valve is set on “Filter” position.
If the spider gasket in the vari-flo valve is no good, you will usually notice one of two problems.
1. Water leaking out backwash port while filter is operating.
2. Valve positions are really difficult to change.
The way to check this is if you are able to move one or two of the "spokes" in the gasket freely(out of the track it sits in) once the top of the valve is removed.
If so you need to replace. The gasket is usually held in with a silicone sealant. Once you remove the old gasket. You will need to scrape any remaining rubber from the track it sits in. I've found that a brass brush from a pluming supply store or home depot along with a flat head screwdriver is usually enough to do the removal.
I always used Permatex Blue RTV sealant on all valve jobs. It can be found at any auto parts store or sometimes Walmart. Follow the instructions for curing. Once cured the gasket is good as new.
The valve should be about $100. We sell it for 90 something. You can rebuild them with gaskets and the spring. There should be a model number on yours, care to post it? Something like SP711, SP714, etc.