Swimming pool multiport valve

How does a pool Multiport valve work?

Water is pulled from the pool by your pool pump and pushed into the “PUMP” port of the multiport valve where it enters the filter tank. On sand filters, water enters at the top of the tank, and for DE filters, water enters at the bottom of the tank.

What is a multiport valve?

Sand and DE filters use a multiport valve to help clean or backwash the filter media. … Multiport valves are called multiport valves because they have multiple ports inside the valve that allows the water to move in multiple directions.

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.

Do you vacuum a pool on backwash or waste?

You can vacuum a pool on backwash, in theory at least, but it would have no benefit. The water would be pumped backwards through the filter, trapping much of the dirt, before passing out through the backwash hose. This dirt would then end up back in the pool once the pump was back on the filter setting.

How long should I backwash my pool?

As a general rule, you should be backwashing your pool about once a week or in conjugation with your scheduled maintenance. Another industry standard is to backwash when your filter’s pressure gauge reads 8-10 PSI (pounds per square inch) over the starting level or “clean” pressure.

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What’s the difference between backwash and waste?

When the Multiport valve is set to ‘Backwash’ the flow of water through the filter is reversed so that all the dirt and debris that the filter has cleared from your pool water and has accumulated in the filter medium is then flushed out and sent to waste.

What setting do you put your pool on to vacuum?

For routine vacuuming, the filter valve is left in the normal “Filter” position. This directs dirty vacuum water through the pool filter to remove the contaminants, then conveys filtered water through return lines back to the pool. The “Filter” setting is used for light to moderate levels of pool sediment.

How long should you recirculate your pool?

about 15 seconds

How do you fix a leaky pool 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 is my backwash valve leaking?

Sometimes you will see water leaking out where the valve shaft goes into the body of the valve. This indicates a bad shaft o-ring on the valve. … If water keeps trickling into the backwash line, even 15 minutes after the valve has been put on filter, then there is probably a bad gasket or o-ring on the valve.

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