My website tracker tells me the most searched for page on this site is the PDF owners manual for our Husky Power Washer. We bought it used, and spent hours online and making calls, searching for a manual. After finally finding one online, I posted a link to it, for all the others who could not find it (as evidenced by the numerous forums questions I searched myself while looking for it. )
We faced a similar problem trying to find a diagram to make a catchment tank overflow pipe. Not on catchment?….move along…nothing to see here. On catchment and need how to’s? Read on:
DH visited neighbors, searched the web, built prototypes….and finally built a winner. Our is a 10,000 gallon galvanized metal tank. He used 3″ PVC pipe, one Tee and six 90 degree elbows. Here are diagrams, measurements and photos….
In order to create the “siphon effect,” he filled the overflow pipe with water, blocked the ends, then removed the blocks when he had the pipe in place…this allowed the proper suction effect.
Aloha my name is Jake, I used ur design to build my overflow and with success I am able to get it siphoning but the only problem is if the rain stops and tank level goes below intake pipe, when it rains the overflow doesn’t automatically drain and I have to re burp it again every time it starts raining again and fills tank up to the intake tube. Do you folks have to re prime it every rain?
Hi Jake, no, we never had to reprime the overflow (and we have since replaced the whole system with self-contained poly tanks.) DH reviewed his drawings and says to be sure that 1. the inside-tank intake needs to be about 2-3 inches higher than the overflow outlet on the outside, 2. the siphon is firmly attached upright to the tank wall (so it can’t tip to either side which could affect the siphon effect) and 3. make sure there is a “breather” vent (open pipe) above the overflow outlet . Not sure if any of that helps, but good luck!
Been looking all over for this. Thanks!
Glad to help!