Much rain. What would you do?

pb4uswim

Well-known member
Jul 23, 2020
330
Michigan
We’ve had rain for about 24 hours and it will continue into the night. I suspect that it will hit the coping and may even overflow overnight. Would you get out in the rain and pump it our let it happen and deal with it in the morning. Since there’s no danger of freezing, I’m wondering if there’s and risk in letting some water get under the coping. Just hate to get an electric pump out in the rain but will if I’m putting the pool or concrete around it at risk.
 

Newdude

Gold Supporter
TFP Guide
Jun 16, 2019
11,240
NY
It will probably find its way out through cracked mortar under the coping. This one time it won’t be the end of the world slowly draining under the patio base. Come winter time you don’t want it doing it many times, or for an extended time because it will eventually erode the base. Freeze / thaw / heave is no bueno either if it’s cold at the time.
 
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Newdude

Gold Supporter
TFP Guide
Jun 16, 2019
11,240
NY
My Cart filter had a waste / bypass valve plumbed in just before it. I didn’t use it often but it was worth it’s weight in gold at times like this, and for draining at closing.

If your yard can handle the runoff somewhere I’d install one as it’s a PITA to break out the submersible pump.
 
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otter86753

LifeTime Supporter
Sep 26, 2013
639
Charleston, SC
Pool Size
5900
Surface
Fiberglass
Chlorine
Salt Water Generator
SWG Type
Hayward Aqua Rite (T-3)
Being coastal South Carolina, I've had to drain my pool many times to keep it from overflowing. One storm, I had to drain it five times including the initial drawdown to the lowest point to allow for skimming. I have a completely walled off backyard except for the wooden gates from the side of the house, making my back yard a "punch bowl". The salt water is a secondary issue as I don't want my plants sitting in it.
 
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pb4uswim

Well-known member
Jul 23, 2020
330
Michigan
My Cart filter had a waste / bypass valve plumbed in just before it. I didn’t use it often but it was worth it’s weight in gold at times like this, and for draining at closing.

If your yard can handle the runoff somewhere I’d install one as it’s a PITA to break out the submersible pump.
My yard is sand. It can handle all the water I can throw at it. My concern would be what the salt water would do to my grass and, more importantly, what if it leached into the beds where the plants are. I’d not want to lose those.
 

revitup

Gold Supporter
Bronze Supporter
Nov 30, 2019
645
Pawleys Island, SC
Pool Size
8500
Surface
Fiberglass
Chlorine
Salt Water Generator
SWG Type
Hayward Aqua Rite (T-15)
Has anyone ever documented an adverse reaction to the ‘salt water’ draining onto their grass or into flower beds? I haven’t seen it.
 

Newdude

Gold Supporter
TFP Guide
Jun 16, 2019
11,240
NY
I should be in a similar Hardiness zone as you and where my pool dumped was hands down the greenest part of my yard. Anything downhill LOVED it. Yes the Hardiness zone is for the cold, but to handle our cold all the plants/grass need to be more robust in the first place so i’d assume yours could handle it too.

I imagine it wasn’t the salt aspect of the water that helped the grass, but the nuetral PH.

also full disclosure I am coastal so everything we have might just be used to the salt. Lol. Your stuffs might beg to differ. 🤷‍♂️
 

pb4uswim

Well-known member
Jul 23, 2020
330
Michigan
My Cart filter had a waste / bypass valve plumbed in just before it. I didn’t use it often but it was worth it’s weight in gold at times like this, and for draining at closing.

If your yard can handle the runoff somewhere I’d install one as it’s a PITA to break out the submersible pump.
This made me think. I have laminars. I could just point them out of the pool and turn them on if I had to get the water out using the main pump. I might do that.
 
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Newdude

Gold Supporter
TFP Guide
Jun 16, 2019
11,240
NY
Have you concocted your winter draining rig pipe yet ? Bring a threaded return with you if not and concoct 2 things. A short ‘L’ pipe from the return that a roll out hose attaches to will work wonders if you don’t get around to adding a waste valve for a season or 6.
 
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Tcadwall0

Gold Supporter
May 19, 2021
137
Charlotte, NC
Pool Size
12900
Surface
Fiberglass
Chlorine
Salt Water Generator
SWG Type
Pentair Intellichlor IC-20
I always watch and pump out before I hit the top of the skimmer. Definitely before the coping.

I have clay, and I have a sump pipe for my FG, but still I would rather control where the water goes than having it wash under my decking.

If I had sandy soil, I would even be more concerned since sand is more likely to wash out. Just my 2c
 

PoolGate

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TFP Guide
Jun 7, 2017
6,493
Damascus, MD
Pool Size
29000
Surface
Plaster
Chlorine
Salt Water Generator
SWG Type
Jandy Aquapure 1400
If we get the rain they are predicting tonight, there's a good chance my pool will overflow. It's right at the coping now. This is the highest it's ever been. I've not had to drain it at all this year just topped it up once. I'll drain tomorrow for sure. It's never bothered my grass.
 

Tcadwall0

Gold Supporter
May 19, 2021
137
Charlotte, NC
Pool Size
12900
Surface
Fiberglass
Chlorine
Salt Water Generator
SWG Type
Pentair Intellichlor IC-20
so begrudging, I got the submersible pump out.
You don't have a way to divert from your pool pump?

I am glad that I had my PB put in a valve for that; you may be able to add that if you have space and an appropriate place to run a drain. I let mine run just now for 10 min, it went from the top of the skimmer to about 1/3 down from the top. I only opened the valve, so my returns and SWCG were still running.

I have a collapsible hose clamped onto the PVC and running to where one of my french-drain pop-ups sits. Unfortunately, the water really runs across my neighbor's yard. but that is how my yard always has drained (as well as his own front yard draining to the same location) so this isn't any additional run-off. Our fescue seems unaffected by the pool water as well, but I typically only drain while it is raining. Since it goes to the same location that all run-off from his yard and my yard goes, that is additional dilution.

Eventually all of this water makes it to a culvert that joins a lot of other run-off water. It doesn't pool up anywhere fortunately.
 

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