brown stains

Stains on the pool surfaces, pool equipment
or on the swimmers, or off-color swimming pool
water. Discolored but clear pool water.

brown stains

Postby Guest » Mon 20 Jun, 2005 10:40

I've been getting these brown spots on my pool liner and they won't rub off. I was wondering if anyone knew what they might be.


pool liner stains

Postby bj » Mon 04 Jul, 2005 21:56

We have a lot of dark stains since we went from chlorine to an ionizer. They come from fungus growing on the ubderside of the liner. We have gotten no good solution for the problem.
Pool Care Proficient
Pool Care Proficient
Posts: 52
Joined: Mon 30 May, 2005 17:01
Location: Michgan, USA

brown stains

Postby Gov » Sun 17 Jul, 2005 13:07

Are these brown stains on the pool floor or walls?
I seem to be getting these too!
They are only one one side of my pool, on the pool floor.
They range from about 5mm to 15mm in dia.
I tried scrubbing them with a scrub brush, they lighten some but wont go away.
Does any one know what this is and how to get rid of it? :( :(

pool stains

Postby dbrookes » Sat 07 Jan, 2006 12:23

Have you tried shock treating the pool with Chlorine? Brown stains can be caused by osmosis. If this doesn't work it's a case of emptying scrubbing down with acid mixture and washing down. Sometimes rubbing a chlorine tablet on the stain without disturbing the water works.
Pool Helper

Pool liner stains

Postby Pool Helper » Sat 07 Jan, 2006 15:48

Often stains that appear in the pool are actually indicative of algea growth under the liner.

If this is the case, liberally sprinkle iron sulfate (also called ferric sulfate or copperas) around the soil at the edge of the pool or deck. Water it in well. After some time it will work its way down under the liner and kill the offending alga.

This is not a quick fix but will work in the long term. Immediate results may be achieved by shock treatments.

Return to “Pool Surface Staining & Discolored Pool Water”

Who is online at the Pool Help Forum

Users browsing this forum: No registered users and 0 guests