Sump Plumbing

Okay...
Got my 20 gallon long sump done...
Now to plumb it.
I've got an overflow box ready to go with a threaded bulkhead attachment.
Do I come directly off the overflow with PVC then into a ball valve? Do I put any flexible or vinyl hose in there at all?
On the return should I put a check valve in?
I'm guessing I should put in a ball valve there to right?
Probably some vinyl tubing of the pump for vibration??
I'm using a Rio 1700 pump for the return.

Any responses will help greatly!! First time doing this so pardon the dumb questions!

 

I have almost the same setup. I used PVC on my overflow and return lines. Valves on each so I could tune the system to be silent. You might look into a gate valves as they have a finer adjustment.

As for check valves, I didn't use one, but that was just my preference. The return line either need a hole or two drilled under the water line or a small gap between the return exit and the DT water surface. Either one will act as a siphon break if you have a power failure and you're not home.

I am also running the rio 1700 and vibration isn't an issue at all with mine. I just used the base with suction cup feet that came with it and I can't even here it. I did use tubing to connect the pump to the pvc retun line, but thats it.

Hope this helps

 

What is the PVC cement of choice? Is there one I shouldn't use because of any harmful chemicals?

 

I just got the oatey combo pack at Home Depot. Its a purple primer and clear cement. I think they are all safe once cured although I didn't even think to look at that. I just figured they use it on household plumbing so it must be ok. I let everything sit for 24hrs after I glued it just to make sure it was fully cured.

 

one advantage in using braided flex hose is that you can see inside them. Algae buildup, snails etc. Overtime there will be some sort of crud built up in them. But then the other side of the argument is that, if you run a fuge with lights, that will add to the algae problem. So PVC would help in that case. I think either way works, it's just plumbing it with some unions, so when and if you have a problem, it's easy to disconnect and do maintenance.

 

Yeah...using a lighted fuge. Don't want any more algae than I have to have.
Here's a dumb question...What exactly are PVC unions and how do they work?
Can you use union between a PVC and flex hose?

 

The pic is a union. The big ring is a threaded collar. You just glue it into the line like you would anything else. You can unscrew it and it take out the piece attached to it without have to cut anything or take out the whole assembly.

 

ahh....gracias.