Help with setting up sump

mark · #1 05-31-2006, 02:02 PM

Quote:

Originally Posted by StirCrazy

normal PVC Cement and primer works fine of flex SPA pipe. mine has been holding for 3 years now and still strong, just make sure you do the primer and use a medium or heavy body glue.

Steve

Searched online a bit before and talked to a couple of Hot Tub places and just ended up gluing my SpaFlex as well with regular PVC cement and primer.

Jason McK · #2 05-31-2006, 02:22 PM

A few thing you should keep in mind.

You will at some point want to take it appart. Use "Unions" in logical spots so that you can remove sections of the plumbing.
If your sump will be located right below the overflow, there is little need for Spa Flex. Save your move and just do it with regular PVC. Or upgrade from Sch 40 to sch 200. it is thiner walled high pressure.

You will want to put a ball valve just after your pump to regulate the amount of water returning to the tank.
Do a search for Derso stand pipe. That will be a great addition to the overflow as it will quite down the water drain sounds.

J

TheReefGeek · #3 05-31-2006, 02:29 PM

Quote:

The tank is drilled for an external overflow.

What do you mean?

impreza · #4 05-31-2006, 06:09 PM

Quote:

Originally Posted by TheReefGeek

What do you mean?

Hard to explain haha. I will take a pic and post it tonight.

TheReefGeek · #5 05-31-2006, 06:31 PM

Alrighty. But basically the same potential problems still exist, because any overflow can potentially clog and fail.

Also make sure your return piping won't siphon your tank back into your sump when power fails. If you want your return low in the tank, then drill holes in the piping just under the water line so that when the water level drops from back-siphoning, it sucks in water and breaks the siphon.

impreza · #6 06-01-2006, 05:26 AM

Quote:

Originally Posted by TheReefGeek

Alrighty. But basically the same potential problems still exist, because any overflow can potentially clog and fail.

Also make sure your return piping won't siphon your tank back into your sump when power fails. If you want your return low in the tank, then drill holes in the piping just under the water line so that when the water level drops from back-siphoning, it sucks in water and breaks the siphon.

Do you have a pic of this?

StirCrazy · #7 06-01-2006, 12:16 PM

Quote:

Originally Posted by TheReefGeek

then drill holes in the piping just under the water line so that when the water level drops from back-siphoning, it sucks in water and breaks the siphon.

you do mean "sucks in AIR and breaks the siphon" don't you?

Steve

TheReefGeek · #8 06-01-2006, 02:24 PM

lol, yeah I meant air breaks the siphon, thanks.

I don't have a picture unfortunately.

How are you running your water return plumbing? Is it going over the top of the tank and in, or is the tank drilled for this as well?