Completely replacing liner, do i need to buy a sump pump or can my pump / main drain completly drain the pool?

caliskier

LifeTime Supporter
Aug 24, 2014
315
Oklahoma City, OK
Hi all,

I am getting ready to replace the liner, I was thinking i might need to buy a sump pump but before I do I thought I would ask if my pump and main drain could handle it
 

jblizzle

Mod Squad
TFP Expert
LifeTime Supporter
May 19, 2010
42,327
Tucson, AZ
It depends if you have valves that can isolate the suction to the floor, If your floor is plumbed through the skimmer, then you typically do not get a good enough seal from the skimmer float valve to drain from the floor. If the floor is plumbed to the pad with valves to select between the skimmer and floor, then you can likely drain the pool down pretty far; don't stop the pump or you may not be able to get it to prime again.

Renting a sump pump for Home Depot would run you <$50 and drain the pool in half a day.
 

caliskier

LifeTime Supporter
Aug 24, 2014
315
Oklahoma City, OK
It depends if you have valves that can isolate the suction to the floor, If your floor is plumbed through the skimmer, then you typically do not get a good enough seal from the skimmer float valve to drain from the floor. If the floor is plumbed to the pad with valves to select between the skimmer and floor, then you can likely drain the pool down pretty far; don't stop the pump or you may not be able to get it to prime again.

Renting a sump pump for Home Depot would run you <$50 and drain the pool in half a day.
Thank you, I can isolate the pump to just that drain. And my neighbor has a small garden hose sump I could borrow, I just did not want to have to use it over days.
 

mknauss

Mod Squad
TFP Expert
May 3, 2014
18,354
Laughlin, NV
You show you have a liner pool. Do not drain a liner pool. At most you can drain 18" of water and then refill.

EDIT -- Sorry - I did not catch you were replacing liner.
 
Last edited:

jimmythegreek

Bronze Supporter
Aug 10, 2017
936
Morris Cnty NJ
Are you replacing the liner yourself? If you are there are many factors before you start. You need to have the liner on hand and be SURE of your groundwater status. If you are high and dry no issues. If you have any water underground you could have problems and you may encounter repairs to floor once removing old liner. Just be informed whatever you do or ask questions
 

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