Originally posted by Seaman
No i dont have anti syphon holes, I used this little one way valve, i put it inbetween the return pump and the tank (so water cant syphon back into the sump) right before the tank....
Slip, can you point to a thread or web page with a diagram or explanation of anti-siphon holes?slipknottin said:Check valves are very prone to failure. Id still drill anti-siphon holes in the return tube....