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I have a Hayward S166T sand filter. I changed out the internal diverter valve (it had been leaking out the backwash line). Now, it is leaking around the diverter valve handle. What do I do / change now?
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Hi Shari,
I see two possibilities. 1. The diverter shaft o-rings are not sized correctly (or missing). 2. When valve handle was reinstalled it was not oriented properly with the diverter position in valve body.
Hope this helps you.
Go to the following site... http://www.haywardnet.com/inground/products/manuals.cfm#FiltersSand
Scroll down to the Valves under General Pool/Spa Equipment. Download each of the PDF Dcouments for Valves and find the one that closely matches your design. It will show the position of the different settings.
No. That port is there for when you backwash or pump to waste. You normally put a hose adapter there that allows for a collapsable backwash line to be attached when ready to backwash the filter. If it is leaking water there when the valve is set to something other than waste or backwash yuou need to replace the internal gasket in the valve.
Hey! Mine was doing the same thing. I had the hoses switched up. I had the hose from the pump connected to the port marked RETURN (on the Hayward vari pump valve). Not good! I also had the return line hose (from pool) connected to the port marked pump. It happens! The problem is I tried EVERYTHING ELSE before I found my error. This includes a trip to Leslie's to buy a brand new multi port valve (good thing they have a return policy) AND changing out my relatively new sand in the filter AND taking apart the vertical tube and each individual flange at the bottom to clean them out. Please check your hoses FIRST if it won't backwash! By the way...I've been a pool owner for 17 years. I think my experience worked against me since I didn't recheck my work at setup. NOTE: It might SEEM like your filter is working because you get suction at the skimmer and water rushing thru the return line into the pool. It's not working if your lines are backwards like mine were! My water started turning green!
When you had the unit apart, did you note the correct alignment of the handle to the diverter? You may have put the handle on 180 degrees away from the correct orientation and therefore flipped all the settings, making filter=backwash, etc...
If thats not it, any chance it has freeze damage inside from not draining completely and therefore needs a new valve?
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