Have light coloured concrete roof tile which are now black with algae and moss. Will this product return to original colour? If so what is process
This product will remove black algae and mould. However, if there is any black lichen present, this product may struggle to remove it. Lichen is very stubborn to get rid off and we would advise you to use the Ultima XP neat to remove it. Please follow the link below for the product details:
Dear Sirs, Can your product be used on bushes and trees? If not could you recommend a good product.
Unfortunately, we do not have a product to remove moss, mould or algae that can be used on bushes and trees.
If it is sprayed near grass or plants near to the timber decking, when washed off will it kill the grass or plants?
Yes, this product will cause damage to grass and plants.
I have a garden path made with Cotswold buff (limestone I think) decorative stone. Would this product clear the unsightly green algae that has discoloured the surface of the stones?
Yes, this product would remove the moss on the stones.
Used product successfully on rubarised surface. How should I remove dead moss?
The moss can be brushed away once it has turned brown.
is the product OK to use on pvc decking
Yes, it is safe to use on pvc decking.
Hi. I have roofs which have both old clay pan tiles and newer standard roof tiles. Can I safely use Pro-Kleen moss remover on these without damaging them?
Yes, this product would be safe to use on both tiles.
If water run off drains into a septic tank will this affect function of tank?
We would advise you not to use this product if there is chance of it draining into a septic tank.
Will this product kill lichen, also can i use in a pressure washer.
We would recommend the Ultima Plus XP for removing Lichen.
hi I am a resident in northern Ireland I used prokleen on my concrete yard last year and was very pleases with the result I may have purchased it on amazon but it is no longer available can you supply me or give me a northern Ireland supplier BILL LYLE
This product is still available. Please follow the link below for further details:
I have black Mould on sone of the planks outside of my garden house which is treated pine can I use this diluted to help remove
Yes, you can use this product to remove black mould.
I love your Pro-kleen product and have used it previously on concrete slabs and garden furniture etc. My question is, can this product be safely used to remove green moss staining on tarmac drives?
The Simply Spray and Walk away can be used on Tarmac.
Can you spray on moss when there is a bit of ground frost?
No, we would not advise you to use when there is frost on the ground.
If Prokleen runs off my terrace will it harm fish in my pond?
Best regards. Richard
The product is dangerous to aquatic life so I would not advise using it so close to the pond
Need to spray tarmac to kill moss. If spray gets onto grass, shrubs or other garden plants will it damage or kill them?
Thank you. John Carey
Yes, this porduct will damage grass, shrubs and other garden plants.
We just purchased 20 little of the Moss and Algae killer and have 2 questions:
1) We have purple original slate which we are intending to use the product on - could the product discolour or damage the tiles in anyway?
2) We also have a large sand arena used for horse-riding / showjumping which has small tuffs of grass growing in various place - have you a product to kill the grass growing on sand which would be safe to use where horses are active?
This product will not damage or discolour purple slate. Although it may damage grass, it is mainly designed to kill moss, mould and algae. It is safe to use in areas where horses are active, but we would advise you to make sure the treated area is dry before using.
Does this contain 2,4-d?
No, this product does not contain 2,4-d. The active ingredient is Benzyl Chloride.
can pro-kleen be used on lead roofs?
This product can be used on lead roofs.
Can it be used with a brush as I have an amount of mold on trellis work with plants behind and spray isn't appropriate?
Yes, this can be applied by brush, but we would advise if the product spills on to plants, it can damage them.
Hi, I've been using your product to keep my patio moss/algae free for a few years and it works fine. Is it safe to use it on UPVC/Plastic ? I would like to use it on a UPVC Conservatory - in particular the roof which is some sort of clear plastic and not glass. Many thanks in advance !
Yes, this product can be used on UPVC on your Conservatory.
Can this product be used on composite decking
Yes, this product can be used on composite decking.
I am about to clean some outside wood fencing boards. I wish to paint them afterwards, can I do this, and how long should I wait.
We would advise you to wait 2 weeks before painting the treated fence.
WHILE SPRAYING ON TO CAMPER VAN WILL ALGAE REMOVER HARM WINDOWS
This product will not harm windows on the camper van. However, the product takes 2 - 3 days to kill any mould and algae, so we would advise you to bear this in mind before rinsing off.
Can you tell me pro-Kleen patio Alge cleaner is safe for pets .
Once dry and soaked in yes
Ask a question?
I used ProKleen on my patio five days ago and have seen no results whatsoever. I wonder if I have doen anything wrong? I used a 5 litre diluted with x4 water across a patio of about 20 metres by three metres. It's had no cleaning effect and there no difference in the many white spots on the slabs.I did put it on in hot sunshine and it's been relentless sunshine since. Am I to wait or will the weather have nullified the effect?
This will only kill mould and algae. You will need our Pro-Kleen Drive and Patio Cleaner to remove built up grime. Please follow the link below for more information:
Please note this this should be applied in the late evening not in the full day sun.
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We aim to answer all questions as soon as possible - often within a few hours! Although please bear in mind that during busier periods it may take up to 48 hours to receive a response. We look forward to hearing from you.