[Ashley Brothwood]

hi
theres a few new walls ive got to clean with efflorescence / white marks on the front, which products would be the best to remove and is there a best way to remove it ie just spray the product and pressure wash it off
thanks

[Griffus]

It's all over the place after the rubbish weather we've had.

Whatever you use the odds are it'll come back as it comes from the lime within the structure itself.

[Ashley Brothwood]

Yes it's all over the place here as there building quite a few new houses too.

That's what I thought that it'd probably come back although a few chemicals say they can stop this, I don't know how well they work or just lower the chances

[chris scott]

Chances are that if what you are cleaning has a damp coarse you will be able to clean it and apply a breathable "sealer". This will  prevent contributing factors to the salts forming again.
The such like of garden walls etc with no damp coarse are a law unto themselves and you must first quantify the customers expectations.

[Kev Martin]

Efflorescence needs three parts or elements to form:

Salts
Water
Route

Take anyone of the three away and the Efflorescence will stop.  There are specialist products available that prevent Efflorescence being so prolific such as Aqua Mix Eff-Ex but to stop manifesting entirely you need to remove one of the key elements.

Kev Martin
Marblelife Ltd
Tiling Logistics

[Ashley Brothwood]

Ok thanks I may tell the customer ill do a small patch to show them how it will clean and it may come back depending upon all the points above