Adding a discharge line to drain the pool

[miamicuse]

I would like to add a discharge line to drain the pool.

Being in South Florida and we have frequent down pours that may last days, not to mention hurricanes, my currently set up has no way to lower the pool water level by say 6 to 8 inches if necessary.

I assume the best way to TEE in for such a discharge line is between the outlet of the pump and before it enters the filter? Just thinking there is no need to run this water through the filter? Or is another location better?

I could just cut the 2" PVC line and insert a tee, and a PVC ball valve downstream of the tee, and put a male adapter on the branch line, and terminate it with a threaded cap. If I want to discharge just open the cap, close the ball valve, and let it drain. Or would it be better to have a more expensive three way valve there?

 

[markayash]

I would like to add a discharge line to drain the pool.

Being in South Florida and we have frequent down pours that may last days, not to mention hurricanes, my currently set up has no way to lower the pool water level by say 6 to 8 inches if necessary.

I assume the best way to TEE in for such a discharge line is between the outlet of the pump and before it enters the filter? Just thinking there is no need to run this water through the filter? Or is another location better?

I could just cut the 2" PVC line and insert a tee, and a PVC ball valve downstream of the tee, and put a male adapter on the branch line, and terminate it with a threaded cap. If I want to discharge just open the cap, close the ball valve, and let it drain. Or would it be better to have a more expensive three way valve there?

That’s exactly how i want to do mine. Now i just unhook my polaris flex hose let it pump water out. Its after the filter but probably not a big difference.
We got 3” In about an hour couple days ago so i can relate

 

[Jimrahbe]

Miam...

What you want to do will work fine..

If this were my set up, I would use the Jandy three way valve, because I am not a fan of ball valves. Depending on your filter, using the Jandy three way, could always be used to keep the filter from draining when the pump lid is removed.

Thanks,

Jim R.

 

[miamicuse]

Miam...

What you want to do will work fine..

If this were my set up, I would use the Jandy three way valve, because I am not a fan of ball valves. Depending on your filter, using the Jandy three way, could always be used to keep the filter from draining when the pump lid is removed.

Thanks,

Jim R.

Hmm that's a good point, I'd never thought of that.

One thing about those three way valves. I have only seen them installed such that the 8 screws are facing up. Is it OK to install them turned 90 degrees, with the screws facing sideways?

 

[Jimrahbe]

Sure... not an issue at all..

Jim R.

 

[miamicuse]

Thanks!

For the three way valve, I have been using Jandy valves for all my pool plumbing. But I saw this one that is cheaper by over 50%.

Will these valve work fine for my purpose? I know the Jandy valves are made of CPVC so can withstand higher temperature, but being this is a return line to the pool with a diverter to discharge, do I need an expensive fancy valve there?