Soft or Hard Plumbing?

[mitch91175]

Thanks, didn't know if that would compromise the softer pvc or the valve.

When you connect them together, just use something to tighten the PVC coming from the value to the tube and you should be set. You can search Amazon for "tube fastening clip" and you will see what I am referring to.

 

[HBtank]

With a larger tank I would go with mostly hard plumbing and lots of unions. Spaflex in certain spots to make final leads to pumps etc..

 

[Pet Detective]

I always use soft, easier to maintain, clean, replace, less chance of leaks [no joints, unions etc.], versatility ie. running my return wherever I want very easily, not mention waaaaay cheaper and less noisy, never ever had an issue since nineteen and ninety two. I do also use swing check valves on my 250g even though my 2 wet drys could handle the siphon and then some if the power goes out.