Dirty Water entering pool from overflow drain during heavy rain


New member
Feb 14, 2019
There is water entering pool from the overflow drain. Likely from landscape drain because the pool now looks dirty. Only happens during heavy rain periods. Why is this happening?


Mod Squad
TFP Expert
Apr 4, 2007
SW Indiana
Welcome to TFP!

It would be hard to tell without knowing the elevations for your pool and yard or maybe having pictures. Unless you are someplace where it rains a lot, you can probably plug or put a valve in the line for the overflow and keep it out.


Gold Supporter
TFP Guide
Jul 21, 2013
Northern NJ
Likely the outlet for the overflow drain water is clogged. Other drains around the house probably feed into the same drainage system as the pool. If water can’t flow out the way it is designed it backs up to inlets like the pool.

Fix is to bring in a drainage cleaning company to clean out the line and get it flowing properly.

Plugging the overflow drain will only move the problems to other areas of your property. Fix the root cause.


Mod Squad
TFP Expert
LifeTime Supporter
Jul 7, 2014
Bedford, TX

Sounds to me like they tied your pool overflow into the landscape drain... It would make sense that if the landscape drain became blocked, the water would back up into your pool..

Does your landscape drain go out to the street or ???


Jim R.