Multiport Valve Filter Setting Issue..Water Coming Out Of The Backwash Hose..
I have a Hayward S244T top mount sand filter. Today I vaccuumed to waste, finished, turned off pump, changed setting to filter but water is still coming out of backwash/rinse hose.
Water is coming out of jets in pool, but also the hose when in filter setting. What can be causing this and is it something I can fix? The pool was operating normally prior to vaccumming to waste. Could it just be a bad seal?
Thanks for the question
The multiport valve sounds like it's not closing off at the waste line. If it doesn't "click" into place the gasket might be going bad or is already worn down. There are a couple of reasons why you're having water leaking out of the backwash hose:
* The spider gasket has gone bad or is crusted up
* The compression plate and compression spring might be going
What I've found is that it's normally the spider gasket. When it's replaced your problem should be solved. By adding a valve to your waste line, this may stop the water from leaking, or stop the water loss completely, but it may cause your filtration to be reduced and you'll have problems later on.
Below are a couple of pictures for a spider gasket for multiport valves.
It's a pretty simple operation, but take care in remembering how you take the screws out of the multiport valve.
Spider Gasket 1
Spider Gasket 2
Hope this helps and good luck with your pool.