How to stop water flow to change the pump?

thegame9377

Well-known member
Jun 3, 2012
50
Louisville, KY
#1
I've learned a ton reading through pool school and various threads over this past weekend.

The pool I'm inheriting with the home we're purchasing needs a new pump and filter (...as in the current pump will not power on). I'm confident in my ability to plumb the pvc up as I've worked with pvc fittings many many times in the past. What I cannot figure out is how to plug up the pool in order to disconnect the current pump and install the new one. There is no valve on the current set-up (I'll be adding one during this process) and the pool is full of water.

School me! :mrgreen:
 

jblizzle

Mod Squad
TFP Expert
LifeTime Supporter
May 19, 2010
41,197
Tucson, AZ
#2
Isn't the pump above water level? If so, no water will come out.

Mine is right at water level. I had to plug the hole in the skimmer (main drain is plumbed to the skimmer also) to keep the water from flowing out when I re-did my pad.
 

thegame9377

Well-known member
Jun 3, 2012
50
Louisville, KY
#3
jblizzle said:
Isn't the pump above water level? If so, no water will come out.

Mine is right at water level. I had to plug the hole in the skimmer (main drain is plumbed to the skimmer also) to keep the water from flowing out when I re-did my pad.
It seems so simple now that I read it. Good old gravity. :)

Also, is the main drain being plumbed to the skimmer the standard set-up for most pools?
 

jblizzle

Mod Squad
TFP Expert
LifeTime Supporter
May 19, 2010
41,197
Tucson, AZ
#4
I think it used to be ... hard to say.

I wish the main drain and skimmer were plumbed separately to the pad because:
1. You have more control over where the water comes from
2. You can drain the pool using just the floor
3. You have more pipe area to suck through so the head loss is less and you get higher flow rates

EDIT: My current pool was built in the mid 1970s. My last pool I had built in 2002 (when I knew nothing). Both had the single main drain plumbed to the single skimmer.
 

JasonLion

TFP Expert
Platinum Supporter
LifeTime Supporter
May 7, 2007
37,879
Silver Spring, MD
#5
thegame9377 said:
Also, is the main drain being plumbed to the skimmer the standard set-up for most pools?
Unfortunately, that is done way too enough. It is far better when it is plumbed back to the equipment pad.
 

head gamez

Well-known member
Feb 16, 2012
161
Winston Salem NC
#6
My eqipment is below water level. How would you go about making a ball valve change if needed? Are their "caps" or anything you can put over the skimmer and/or main drain?

I don't need to, but it is something that I thougth about last night....
 

jblizzle

Mod Squad
TFP Expert
LifeTime Supporter
May 19, 2010
41,197
Tucson, AZ
#7
I used a toilet bulb / seal to plug the skimmer hole. Could not find the correct fitting.

Posted with Tapatalk ... sorry if I sound short ... hate typing on phone :)