[CLEANCARE WC]

Hi everyone I did a solar panel clean this morning and a tree overhangs some of the panels, these are stained by tree sap or something? can you recommend a safe cleaning agent to assist in cleaning? deionised water alone is not cutting it

[robbo333]

I approached this problem from a slightly different angle.

Rather than throwing chemicals at it, I got an old brush and cut the bristles down to around 25mm.

This produces a brush with far better scrubbing power (a bit like a toothbrush).  It's not a definitive answer, but definitely works better.

[Smudger]

TFR on a pad

Hypo will also do it if you feed it through a backpack

Darran

[Ooooooog]

You’ll void the warranty if you use chemicals.

[Ralphie]

Remove the tree!!!!!

[Smudger]

You’ll void the warranty if you use chemicals.

Here we go, just like the hypo thread ....

Darran

[Splash & dash]

As has been said using any chemicals will void the warranty and you could fund yourself being held responsible fir replacement costs . We use hot water and never had a problem removing anything from panels even large lickens come off with hot

[Smudger]

they are glass - what, tfr or any glass cleaner is going to ruin them 

yes they are so delicate I wouldn't use them outside where the weather might damage them

Darran

[Splash & dash]

they are glass - what, tfr or any glass cleaner is going to ruin them 

yes they are so delicate I wouldn't use them outside where the weather might damage them

Darran

Ime only telling you what the manufacturers say I have it in writing from when we used to do tens of thousands of panels for them , we even had regular water samples tested by them as well   . I decided to stop doing work for them last year as the profit margins were so small and the distances we were traveling made it more trouble than it was worth .

[Richard Groves]

I've only done a couple of low jobs where was easy to scrub and rinse with cold water system. Some had birds mess and I sprayed some diluted flash on the brush first. Can't speak for heavily deposited tree sap but I'd be inclined to turn it down unless I had hot water and was a service I was wishing to expand.

[Smudger]

I get on well with a local installer - they say unless its acid you can't damage them - they even got some out and drove their 4x4 over them - not even a scratch.

some of these 'manufacturer' warranties are just their to stop people claiming against them for faulty products - as said we use tfr no probs - even pressure washed a 1000+ array with no ill effects

best advice - if your not sure you can/want to clean them DONT


Darran

[Splash & dash]

I get on well with a local installer - they say unless its acid you can't damage them - they even got some out and drove their 4x4 over them - not even a scratch.

some of these 'manufacturer' warranties are just their to stop people claiming against them for faulty products - as said we use tfr no probs - even pressure washed a 1000+ array with no ill effects

best advice - if your not sure you can/want to clean them DONT

I totally agree with what you have said ime just telling you what the manufacturer said to us and what is contained in the contract , that we had to sign when doing work for them , I did raise these issues with them and they said only pure water to be used end off
Darran