Pool problem: Rust coloured stains

Laptalocal


Joined: 28/02/2008
Posts: 99

Message Posted:
22/07/2008 15:05

Rust coloured stains have developed along the bottom (sides and walls) of my pool. Despite Chlorine 'shocking' the pool, adding algicide (with brightener) and acid, nothing seems to touch it. Any ideas as to how and what will remove this, or what may be causing it? Thanks

TRNCVaughan


Joined: 27/04/2008
Posts: 4578

Message Posted:
22/07/2008 15:41

To what level of Free Chlorine (FC) are you shocking?

You may have mustard algae and you need to be shocking to 40% of your cyanuric acid level. i.e if you have a CY level of 50ppm (optimum) you need to be shocking to 20ppm chlorine.

Pools



Joined: 22/04/2008
Posts: 164

Message Posted:
22/07/2008 16:08

Iron stains appear as a brown or rust coloured discolouration however it is important to ensure that your stain is correctly identified so the correct treatment can be used.

Laptalocal


Joined: 28/02/2008
Posts: 99

Message Posted:
22/07/2008 17:09

Thanks TRNC and Pools. I have shocked to the correct levels and having just read a few articles on the web, I think they are Iron stains. I just need to know now what I use for that?!

koronion


Joined: 09/05/2008
Posts: 20

Message Posted:
22/07/2008 18:08

Laptalogical



It is possible --and I emphasise POSSIBLE that , during the hunting season some lead shot has fallen into your pool. Being lead based , the vacuum will not pick these tiny pellets up . If you have then added chlorine , the chlorine will attach itself to the lead and give off a dark brown stain. Once contaminated by the chlorine , the lead /stain attaches itself to the tiles and is almost impossible to remove . Eventually , as erosion takes place , the stain will minimise and then disappear

Groucho



Joined: 26/04/2008
Posts: 7993

Message Posted:
22/07/2008 18:18

We got literally hundreds of lead pellets in our pool during the hunting season..



The did vacuum up into the trap and I removed them... but they did not stain anything.

brian24001


Joined: 23/03/2008
Posts: 606

Message Posted:
22/07/2008 18:18

Have you had any metal work done around the house.

When our terrace railings were put up, I turned my back for 5 mins, man with grinder grinder throwing sparks inot the pool!! few days later rusty spots, had to scrub with scourer to remove.

Or, are the stains by the grout?

Is it the re-bar too close to the concrete surface below the tiles now rusting and the colour coming through the grout?

Neither of these are likely, but considering all options.

TRNCVaughan


Joined: 27/04/2008
Posts: 4578

Message Posted:
23/07/2008 08:59

If it is mustard algae it will brush off, if it is iron staining it will need an abrasive scourer (green nylon pan scrubber?).

Geoff1131


Joined: 12/07/2007
Posts: 276

Message Posted:
23/07/2008 14:01

We have a pool problem, not brown stains but black spots appearing all over the walls.they seem to be on the joints between the tiles, and the floor seems slippy too,the pool guy is due to come in a few days, he comes twice a week but i missed him yesterday any info would be greatly appreciated.

TRNCVaughan


Joined: 27/04/2008
Posts: 4578

Message Posted:
23/07/2008 14:11

You have black algae, by the sound of it.

This requires scrubbing with a stainless steel brush and possibly treatment with algaecide as well as a chlorine shocking.

Pools



Joined: 22/04/2008
Posts: 164

Message Posted:
23/07/2008 14:48

Hi Lapta Local,

Have you done something regarding your problem?

we can send you specialist to fix that or call us for free consultation.

Call Erkan 0533-8760066

Laptalocal


Joined: 28/02/2008
Posts: 99

Message Posted:
23/07/2008 15:35

Hi



The pool people are coming tomorrow. I think it is Iron stains but as I understand it, it is from the water that I've had delivered? It has been scrubbed with a scourer but still not coming off (stubborn stains)! Will see what the pool people say tomorrow! Thanks for all your help/suggestions.