After you backwash, you should put it on the "rinse" setting for 15-30 seconds before putting it back on filter. That should take care of the problem.
Hi,
After I vaccuum the pool, backwash and turn the pump back on for regular circulation, dirt I just vaccuumed shoots back into the pool from the returns.
When I backwash, I make sure to do it long enough to both run clear and to give it an extra 30 seconds for 'good measure'. The result is the same regardless how long I backwash for - once I turn the filter back on it shoots out dirt for about 15 seconds. It's a sand filter.
Thanks!
After you backwash, you should put it on the "rinse" setting for 15-30 seconds before putting it back on filter. That should take care of the problem.
Thanks Watermom.
It's an old sandfilter and I don't have a 'rinse' setting.
Have you checked the spider gasket in the multiport backwash valve, or do you have a push/pull valve? If you have a push/pull valve (two positions, up and down) then the plunger might be worn and not seating well.
Retired pool store and commercial pool maintenance guy.
Are you backwashing long enough? The one time I had that happen to me was when I rushed and the backwash had not cleared out the junk yet. I wait until the small glass bottle at the top of the pump has clear water going through it. Not sure if that is possible with your set-up, just a situation with mine.
IG 32' x 16', vinyl 19,500 l, Sand filter, Hawyard Low NOx 250,000 btu heater
Heating? Great info on why a solar cover saves $$$?
http://energy.gov/energysaver/articl...ng-pool-covers
Do you have a "Waste" setting, so you can vacuum to waste? If so, the "Waste" setting is the same as the "Rinse" setting.
Carl
Thanks guys,
CarlD: I only have a push/pull valve so it's either backwash or standard.
Spensar: Yes, I've backwashed several minutes past the point of when the water runs clear to be sure.
Waterbear: It's a push/pull valve. I took the 'plunger' out today and examined it. It's old but didn't appear to have anything wrong with it. I lubed the o-rings up again and set it back in. After vaccuuming and backwashing tonight I held just a little hope that the reseating the valve would make a difference but no luck. It's like a punch in the stomach to see the dirt spew back out after vaccuuming in 110 degrees (AZ)
Is there a telltale sign that I could look for if the valve isn't seated properly?
Thanks!!
bumping this thread back up....
Bookmarks