herbakis Posted October 12, 2020 Report Share Posted October 12, 2020 Hello everyone, First time pool owner, it was installed in September. My kids are loving it. Happy I got the heater so we are able to enjoy the pool this fall. But I need to figure out how to close this thing cause "Winters Coming"...lol I need help with closing my pool it's a doughboy above ground 16x32 with a main drain and 7ft deep end. My problem that I'm having is that I don't know what to do with the main drain and the stand pipe that goes to the pump. Quote Link to comment Share on other sites More sharing options...
RDspaguy Posted October 13, 2020 Report Share Posted October 13, 2020 You need to blow air through the main drain and trap it in with the valve. Where does the standpipe go? Quote Link to comment Share on other sites More sharing options...
herbakis Posted October 13, 2020 Author Report Share Posted October 13, 2020 The standpipe is connected to the main drain somehow.( its filled half way with water) The installer said it was for safety. I do not understand how this works, but it is supposed to stop someone from drowning if the suction is to great on the main drain. I tried to find other pools online with this setup but haven't had any luck. So to the problem I'm having. I need to blow out the lines trap air inside to prevent freezing and figure out what to do with the standpipe . Is this correct? Quote Link to comment Share on other sites More sharing options...
RDspaguy Posted October 14, 2020 Report Share Posted October 14, 2020 That makes perfect sense, it is a vacuum release. People die every year from suction entrapment, and that is a great thing to have. You will need to blow it out as well. I would put a valve on it and blow it out just like the main drain line. Quote Link to comment Share on other sites More sharing options...
RDspaguy Posted October 14, 2020 Report Share Posted October 14, 2020 You can use the exhaust port on a shop vac to blow out the pipes. Close the valves once bubbles are coming up out of the main drain before you turn off the vac, then plug the valve with a winter plug for backup. You'll need 2 in the pump suction valve unless you are plugging your skimmers too. 1 Quote Link to comment Share on other sites More sharing options...
herbakis Posted October 17, 2020 Author Report Share Posted October 17, 2020 Thanks Rdspaguy Quote Link to comment Share on other sites More sharing options...
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