Ocean Image
Premium Member
Phew...10 pages! Things are really starting to come together Conda. Keep up the good work.
Drilling the SS... The inside pipe, where the 90 elbow slides on is what turns the elbow. You have to put the elbow in the correct position to get the flow you desire (correct oscilation), then stop/remove the SS and drill through both parts without disasembling. Whenever you put the 90 back on in the future, make sure the holes line up.
Another method is to drill the top of the SS (or the pipe attached to it) and tap a 1/4" line into it. You could also do this on the horizontal leg of the submerged 90 elbow. The loose end of the 1/4" hose will have to be secured, at or above the water level, and pointed into the tank. It will have a little flow coming from it, but when the pump shuts off it will allow enough air to break siphon. Benefit to this method is easy recognition that the hole is not cloged or misalligned.
The durso's... It may be our fault if the durso's are a little too high. You should have a slip fitting on the inside of the overflow, looks like it's threaded. Easy fix, if you need it....cut some of the fitting legth off of the T part on the durso, and or cut no more than 1/3 the threads off the female adapter. A 1" drop over the weir is good.
I would not drill the air holes without having both durso's operating. The diameter of the holes should be determined during normal operation (both operational). 1/8"D hole should be big enough IMO. When done correctly the level in the overflow will not fluctuate and you should have quiet operation. Again, 1/4" line with a needle valve could replace the above method.
Hope this helps. Keep up the good work.
Chris
Drilling the SS... The inside pipe, where the 90 elbow slides on is what turns the elbow. You have to put the elbow in the correct position to get the flow you desire (correct oscilation), then stop/remove the SS and drill through both parts without disasembling. Whenever you put the 90 back on in the future, make sure the holes line up.
Another method is to drill the top of the SS (or the pipe attached to it) and tap a 1/4" line into it. You could also do this on the horizontal leg of the submerged 90 elbow. The loose end of the 1/4" hose will have to be secured, at or above the water level, and pointed into the tank. It will have a little flow coming from it, but when the pump shuts off it will allow enough air to break siphon. Benefit to this method is easy recognition that the hole is not cloged or misalligned.
The durso's... It may be our fault if the durso's are a little too high. You should have a slip fitting on the inside of the overflow, looks like it's threaded. Easy fix, if you need it....cut some of the fitting legth off of the T part on the durso, and or cut no more than 1/3 the threads off the female adapter. A 1" drop over the weir is good.
I would not drill the air holes without having both durso's operating. The diameter of the holes should be determined during normal operation (both operational). 1/8"D hole should be big enough IMO. When done correctly the level in the overflow will not fluctuate and you should have quiet operation. Again, 1/4" line with a needle valve could replace the above method.
Hope this helps. Keep up the good work.
Chris
