Take water out of pool and bypass the filter?

[doublewide6]

Hi,
I just added CYA though socks in my filter basket about 5 days ago. It rained and I want to pump down the pool about 3". Is there a way to bypass the filter and pump out water. I think a lot of my CYA is in the filter now and I want to keep it in there and make sure it does not get pumped out. I'm not sure if the Waste setting on the Hayward Sand Filter bypasses the sand? If not I will take a hose and let the water syphon off the top of the pool. Thanks

 

[niteshift38]

Not 100% sure, but it is my understanding that setting the multi-valve to waste bypasses the filter. At least it is how I vacuum the stuff blown into my pool after a bad wind storm. None ever seems to be in the filter afterwards! (I actually proved it once when I opened it to deep clean it after vacuuming to waste). Hope this helps a little

 

[woodyp]

Good question. But if the CYA is on top of the sand bed and you use waste setting that will run water straight across the top of the sand bed I think.

 

[niteshift38]

Now woodyp got me curious also! Hopefully others with more knowledge will chime in because I have no clue what actually takes place with the various settings of the multi-valve on a sand filter (never took on apart)

 

[denniswiseman]

When I run to waste no water passes through or over my sand. It's just like vacuuming to waste but you will be losing CYA from the pool water

 

[niteshift38]

Found a fairly simple explanation (with illustrations) of multi-valve settings flow of water here multi-valve flow

 

[woodyp]

Now woodyp got me curious also! Hopefully others with more knowledge will chime in because I have no clue what actually takes place with the various settings of the multi-valve on a sand filter (never took on apart)

It's amazing how much we "think" we know sometimes!

 

[doublewide6]

Thanks for the diagram it looks like on the sand filter it goes directly through to the exit pipe and does not take any water from the top of the filter, but is anyone sure???? In the meantime I have been siphoning water at a rate of about 3/4 of inch every 3 hours.

 

[JamesW]

With the multiport on "Waste", water goes directly to waste through the valve and does not go into the filter.

 

[YippeeSkippy]

And you can always try to siphon water out directly just using a hose. Old fashioned skills need to be remembered!

Maddie

 

[denniswiseman]

Whichever way you do it you are still taking water from the pool. Just go for it
If you are vacuuming to waste that water doesn't go through the filter

 

[doublewide6]

Okay thanks for the definitive answer. I ended up siphoning with the hose because I wanted to lower the level ASAP, the only tip I have is if you use the return jet to fill the hose it makes starting the siphon process easy. But next time, now I know all have to do is use waste and pump it down. Thanks everyone.

 

[Fingaling]

Waste should bypass the filter.
If you added the cya 5 days ago, it should be dissolved out of there anyway. Another good reason to hang socks in front of returns instead of in the skimmer basket.