Return questions

[Editour2]

1) I have the return pump returning water to the main display via two flexible ball socket tubing. Both come off a threaded 3/4" elbow which each has a small hole to break suction in case of a power failure. The problem is that water is also shooting out of these small holes, (although not heavily). The water is entering the tank or the overflow and is a little noisy. Can I eliminate 1 of the 2 holes on the return elbows, (without creating a problem), since they are all connected? or As an option does anyone utilize checkvalves?
2) I have my phosban reactor drawing water from my overflow, (which is about 14 gallons of water, due to my tank being a converted tenecor simplicity plus system), and emptying into my sump. I am using plastic hoses, (1/2" or 3/8"?). In case of power failure I am concerned about reverse suction & possible overflowing the sump. There are no elbows or pvc involved here, I can make a small hole below the water line or again possibly use check valves.

Any comments would be welcome.
thanks,
Frank

 

[Vinny Kreyling]

Frank,
Most people do not like check valves because they seem to fail at the most inoportune time. They do work IF and it is a big IF. You maintain them periodicaly to make sure they are not obstructed in any way and will close properly. The only other way to eliminate those siphon break holes is to raise the return lines closer to the surface so that the nozzles themselves cause the break in siphon.
As far as the reactor is concerned a properly sized hole in the line should work just fine. Remember to check this periodically also for any changes in diameter or obstruction.
Of course you could always get a sump large enough to hold any water drainage. Thereby eliminating any worries.
:eek1:
Fun isn't it

 

[Editour2]

Thanks Vinny,
I already put a hole in the phosban reactor line, and that worked. I think I'll follow your suggestion on the ball tubing and possibly eliminate a section and/or raise it a little. I'm trying to keep everything in the stand, (sump etc). I know down the road I'm going to take advantage of the fact that my garage is right behind the tank however it's taken me over 2yrs to get to this point.
Frank