Forum Title: Keeping my pool open in Maryland this winter
My plaster was just finished in my refurb November 1, and I wanted to keep the pool open a full 2 months to let the plaster cure. My plaster is pretty well cured, although as you'd expect, the pH keeps rising a bit. But my overall chemistry is pretty much dead on. In looking through the weather for the next two weeks, the Maryland/DC area is predicted to be mild through late January, and by the beginning of March, the threat of super-cold weather is gone. So that leaves me with a 6 week window of potential cold winter. The water is pretty much perfect chemistry-wise, I have a pump running 24 hours a day at low speed (800-1200 RPM) along with a generator to keep it running in case of power failures, a retractable cover to keep leaves out, and a propane heater if we get crazy cold weather. And my thought process is now.... why bother paying someone to close the pool, just let the pump keep the water moving, bump on the heater if the temps get crazy cold. Plus, they pump out half the water I just paid to put in there, which leaves my plaster exposed. I really want to keep that plaster underwater with pH, TA, and CH correct for a year. So I'm all set to call up the pool company and tell them I don't need them to close on January 10th. Can anyone spot a flaw in my plan?
Category: pool Post By: BERNICE BANKS (Boca Raton, FL), 01/14/2019

Really sounds like you have it mapped-out pretty well. You've made it this far, so I don't see why you can't just press forward to spring.

- CLIFTON OCONNOR (Ventura, CA), 03/24/2019

Pool owner in Maryland here. I don't see any flaws in your plan. I would keep a thermometer in there to monitor the pool temps as the weather fluctuates and have that heater running as needed.

- GABRIEL NORRIS (Buffalo, NY), 03/25/2019

Also MD pool owner. I do see a couple of flaws in your plan. #1 is if this is a money only reason to not close, you will spend more in electric keeping the pump running all winter than it costs to close. Does your equipment have freeze protection? If so, it goes to a higher speed (usually full speed) than you have now when it kicks in. Don't forget in MD usually pool season starts in May. So it isn't just the 6 weeks that you are keeping it going it is until May when realistically it will be warm enough to swim. #2 if something were to happen to your pool or equipment and it turned out it could be even remotely traced to not closing or not closing properly, you can bet your pool builder will not warranty anything. #3 it is not recommend to run the heater in the winter especially not to just heat the water a bit to prevent freezing. I am not sure all the technical reasons but I believe it damages the heat exchanger. That said, I do know someone that kept his pool open in MD throughout the season. He kept it heated to 85 though and regularly swam on nice days during winter. He also ended up getting a full inflatable pool enclosure and then a few years after that decided it just wasn't worth the expense and hassle.

- NAOMI BLAIR (Flint, MI), 03/19/2019

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