![]() ![]() I am guessing it would be smarter than trying to just get away with 1 3/4" back-up and using the second 3/4" for my return. ![]() The Bean does take up real estate that is for sure. Once the pump starts back up, typically 30-60 seconds later the Bean has finished purging and is back to being quite again. If power fails, there is no tuning necessary to kick back in. Would it work to set up a Modified Bean Animal with a 1" full syphon and 2 3/4 inch back-ups? The Bean Animal is truly a set it and forget it system. So, it looks like the bulkheads I have to work with are 2X 3/4"and 1X 1". The third hole is 1 and 13/16th (ish) The bulkhead that fits in there has an inside diameter of 1 and 5/16th THIS BULKHEAD FITS THE 1 INCH PVC (maybe it's a 16th smaller than 1 inch now that I look close) so naturally I continued to think that they were 1 inch bulkheads. The bulkheads that fit in these two holes have an inside diameter of 1 inch. It now looks as if I have 2 X 3/4 inch ( both of which I thought were drilled to fit 1 inch bulkheads. It seems that what I have been thinking is a 1 inch bulkhead is actually a 3/4 inch bulkhead meaning it looks like it will only accommodate a 3/4 inch pipe. The fittings themselves (elbows, couplers, etc.) are all a fraction larger to accommodate the insertion of 1" diam pipe. After the latest water change, the overflow was draining all the water out of the. My Modular Marine bean animal had been working fine. 9 Big Smelly fish If it aint broke, fix it till it is. make sure theres about 3-maybe even 4-5 cm head pressure distance to get that single pipe flowing 100. The return pumps ball valve acts to regulate and dial in the exact flow to have just a trickle into the thr 2nd drain pipe. Once the siphon starts it clear the air out. The second drain pipe acts as the unrestricted emergency overflow and also the slight trickle over flow. it seems that 1 inch (inside diameter) pipe does not fit into my "1 inch bulkhead", in the diagram the 90 elbow is marked 1 inch on the side that is saposed to fit into a 1 inch bulkhead and there is a 1 inch short piece of pipe that goes to the sanitary T after the 1 to 1.5 enlarger. That would defeat the whole purpose of the bean when a properly set up bean overflow. This leads me to believe that I need a smaller diameter like 3/4 PVC pipe to join them. The pipe at Lowes that was stamped 1 inch has 1 inch inside diameter but the outside diameter is larger then the bulkhead hole. If you cut a 2" long piece of 1" pipe, it'll slip into the 1" bulkhead nicely, and leave enough spare pipe on t'other end to attach your fitting, yet make the joint appear "seamless". The pipe itself (not the fittings) is 1". Nope, I get that there needs to pipe to join them. Are you trying to direct connect fittings directly into the bulkhead? If so, that ain't gonna work. ![]()
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