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Why is water coming out of my backwash?

WATER LEAKING OUT OF WASTE LINE After you finish backwashing it is not unusual to notice a little stream of water continuing to come out the backwash line. … The majority of the time leaks such as this are from a bad spider gasket on a multiport valve, or plunger o-rings on a push-pull valve.

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Sand coming from the pool filter is the sign of a broken component in the filter. … If you see it blowing out into the pool, something is broken. The most common problem is a cracked lateral, which is one of the perforated pipes at the bottom of the filter that catches water that has circulated through the sand.

Beside this, Why does my sand filter blowing out sand?

Sand coming from the pool filter is the sign of a broken component in the filter. … If you see it blowing out into the pool, something is broken. The most common problem is a cracked lateral, which is one of the perforated pipes at the bottom of the filter that catches water that has circulated through the sand.

Likewise, How do you fix a lateral sand filter?

To replace a broken lateral in your sand filter you will have to remove the Multiport Valve on the top of your filter. If your filter was not installed with union connections, you will have to cut the piping to your filter. When you reinstall the filter after replacing lateral, this would be a good time to add unions.

Also, How do I know if my spider gasket is bad?

The spider gasket should be firmly attached (glued) into all of the grooves in between the ports. It should not appear twisted or overly worn or torn. Check to see that your gasket is not enlarged or looks as though the rubber has been chemically altered.

How do I know if my multiport valve is leaking?

Multiport Valve Leaks Around The Handle Sure, it’s typical to see water on top of the multiport valve cover- especially, after it rains. However, if water rises from within the valve and overflows to the lid, you have a common multiport leak. Under the handle, on the stem of the diverter are gaskets.


18 Related Question Answers Found

 

How do you take apart a sand filter?

Why is my pool filter draining water?

When the filter pump runs, the plumbing on the pressure side is under pressure. This can turn what would start as small drips into significant amount of spray that can make your pool lose water rapidly. Check the waste or backwash line to see if the water is consistently running.

How do you fix a leaking multiport valve?

If it’s still leaking, remove all cover screws and pull out the key assembly. Clean, inspect and lubricate the large cover o-ring and place back into the groove in the key assembly. Replace the key into the valve and tighten up the cover screws, then fire-up the pump to check for leaks.

Why am I having to backwash my sand filter so often?

HIGH FILTER PRESSURE. A sand filter needs backwashing when the pressure gauge reads 8-10 lbs higher than the pressure after cleaning. The rule of thumb is that if pressure is higher than normal it’s a dirty filter, and if it’s lower than normal, it’s a dirty pump basket (or impeller). …

How do you put a spider gasket on a multiport valve?

Why is my pool losing water after backwashing?

WATER LEAKING OUT OF WASTE LINE After you finish backwashing it is not unusual to notice a little stream of water continuing to come out the backwash line. … The majority of the time leaks such as this are from a bad spider gasket on a multiport valve, or plunger o-rings on a push-pull valve.

How many laterals does a sand filter have?

10 extension

How do you remove the laterals from a sand filter?

Why is my multiport valve leaking?

A multiport valve that leaks around the handle means your gaskets are deteriorating or they are out of alignment. Cold water actually makes conditions worse. In cold weather, o-rings shrink or small debris wedge around the stem o-rings, causing leaks.

How do I know if my sand filter is bad?

– Bad Sand, or oily, gunky sand. Replace sand or use sand filter cleaner.
– Bad gauge. Does it go to zero when the pump shuts off? …
– Obstruction after the filter. …
– Obstruction before the filter. …
– Multiport valve recirculating water, reducing backwash water flow.

How do you keep sand from eroding under a pool?

– A natural barrier against moisture such as dew, rain, and snow from getting underneath the pool and washing away parts of the sand bed.
– An added protection against the uneven ground which can cause the pool liner to fill in the holes caused by the excavation process, inducing liner failure.

Why is my backwash valve leaking?

A backwash valve leak can mean a dirty pool, or much worse. … And if it is an open backwash line, when the pump turns off for the day, water can drain out of the filter, draw air into the line and reverse the flow direction, leading water to run back into the pool and bring dirt and even DE with it.


Last Updated: 14 days ago – Co-authors : 8 – Users : 8

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