Live in Montreal, When should I close pool?

[poolnoob]

Hi guys,

so it's the first years I have my pool, just wondering when is a good time to close my pool.

I was thinking mid-late september, is that safe?

Thanks

 

[kenmar]

Whenever your water temp is consistantly <=60deg. If the water gets too warm, you risk an algae bloom.

 

[derekm]

I live in PEI, and usually close Canadian Thanksgiving (Oct. 11 this year) weekend . The water is cool enough by then not to incur algae. I usually turn the heater off by the 1st of October to let the water cool down. If we happen to have a sub-zero night before closing, I keep the pump running. If you have water bags to fill, you might want to start filling them earlier and leave them pool-side, as the weather can get very cool in mid-October!

 

[bk406]

If we happen to have a sub-zero night before closing

I saw this and went:

Then realized you meant 0^c

 

[poolnoob]

what do you mean, if I have water bags to fill?

 

[derekm]

If we happen to have a sub-zero night before closing

I saw this and went:

Then realized you meant 0^c

Just thought I'd throw that in to confuse you Fahrenheiters! (the original poster is Canadian, and would know what I meant). It's cold here, but not THAT cold!

 

[derekm]

what do you mean, if I have water bags to fill?

The cheap winter covers (like I have) are weighted down on the edges with 8-10 foot (will revert to English measurements!) long tube-like water bags that must be filled by hose each fall. The deluxe covers, e.g. Loop Loc (the ones with the ads that show an elephant walking on the cover) fasten directly to the pool decking, and require no such bags.

I see now that you have an AGP. Some AGP covers are held on by water bags (lengthwise if no deck to attach to), and some are held on by a cable/grommet/winch device that may or may not be augmented by water bags.

 

[poolnoob]

if you have a heater, whens the latest we can close a pool

also do you need a special type of heater is using a salt water pool, I plan to get a heater next year