Scum line

[Freegav]

Hi any advice on best product to clean scum line on fibreglass pool. Have tried bicarb and sugar soap. Mild success.
Thanks

 

[kimkats]

Hi and Welcome to TFP. Do you have a picture of what you are dealing with? That might help us id the problem. Do you have any idea what caused it?

Can you please let us know where Bentleigh East is?

Kim

 

[JoyfulNoise]

Can you please let us know where Bentleigh East is?

Kim

Australia. As it is summer down under you can expect a lot of the new posters to be Aussies and Kiwi's.

 

[woodyp]

Ya' got your deep South folks then you got your......DEEEEP........South folks!

 

[Freegav]

Can't really see in pictures as the pool is black. Wall colour. Can feel it.

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[Freegav]

Melbourne Australia

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[Caco]

Lol Woodyp

Freegav, is the scum line hard or soft and greasy? White, brown or other colour?
A description would help narrow the cause down and assist with the solution
Do you have test results too?

 

[Freegav]

Hard Brown ish. Sorry missed something test?

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[Caco]

Your pool water test results was what I was referring to

 

[Freegav]

PH 7.6
Ch 3.1
Ta 100
Cy 33

 

[Freegav]

Found solution. White vinegar awesome job

36000 l fibreglass black pool
swg. automatic acid doser.
cartridge filter. computer measures orp not fc
Melbourne Australia

 

[kimkats]

Now you need to get that water balanced so you do not even think about using any of the stuff that caused it!

Vinegar is awesome for many things. So glad it worked for you!

How is the water looking? Are the bugs going away?

Kim

 

[pooldv]

If vinegar removed the line then the it is likely that it is scale. Scale often first shows up at the waterline. More here, Pool School - Calcium Scaling

 

[Freegav]

Bugs gone. Still have some bubbles from the old algaecide. Noticing a brown substance on floor which is picked up by cleaner not sure if dirt or brown algae? Also how do I remove calcium stains from fibreglass?

36000 l fibreglass black pool
swg. automatic acid doser.
cartridge filter. computer measures orp not fc
Melbourne Australia

 

[pooldv]

Elevated FC level will get rid of the bubbles from the algaecide. To remove calcium scale see this, Pool School - Calcium Scaling

 

[GaryT58]

In my fiberglass I use a non-scratch sponge, like the ones below. I have a 4" ledge @ 3.5' deep around the pool, which I walk on. I clean in a circular motion, going into the water every revolution, which keep it wet and rinsing, and also because since waterline changes, some scum is below waterline. For me this works really well, and doesn't introduce any chemicals.

 

[Freegav]

Thanks. Got plenty of those.

36000 l fibreglass black pool
swg. automatic acid doser.
cartridge filter. computer measures orp not fc
Melbourne Australia