Don’t even bother. Have applied the product as per the instructions and all it’s done has changed the green to and absolutely disgusting green/brown. Several weeks on nothing has changed so not sure what to do now because my pool area looks terrible

i used 30 second roof cleaner about12 months ago.on garageafter about 3 months i though id wasted my time and money.yesterday i got on garage roof tiles look new.very happy it must take time to work.

Had exactly same experience. However, I took it back to Bunnings and received a full refund. They did say that no one had ever complained about it. Umm! I also expressed concern that they were selling such a useless product.

I purchased the 30 seconds roof cleaner in a 5 litre container from Bunnings for $39 and I found it was a dud.
I applied as per instructions onto my clay roof tiles. left it for 12 weeks and no change. Sprayed again and another 10 weeks no change if fact worse. Upped the concentration level to one part 30 seconds to two parts water. This worked for the lichen on the roof, it grew like crazy. I thought it was a lichen killer but it worked like fertilizer on a lawn.
So have blasted the lichen off with my Gerni, which I should have done in first place I guess.

I paid $23.70 for this product at bunnings at it is seriously crap. I thought it would be way better than it said it is. Windows were very streaky and I will be letting everyone I know never to purchase this product ever. If you follow instructions on a product and it doesn't work then you should be refunded and they should not be allowed to sell a product that doesn't do what it is supposed to.

I used the roof product and the hose off outdoor cleaner on my brick pavers. Carefully followed instructions, waited several months re the roof and we had rain as indicated in the instructions.

Left the paver solution on fot much longer than 15 minutes. Shouldnt have been a need to scrub the pavers. Hosed off and oh look! No different!

Tried this on a brand new shower after one week. No effect at all. Did not remove anything from the grout at all. I thought just spraying and walking away sounded too good to be true.....it is.

I followed the instructions and it removed colour from my stenciled concrete!!!!
Not happy!!!!
Don't know what to do now..
I'm left with permanent damage now.
Be very careful with this product

Followed the instructions fairly well. Cleaned off the surface layer of weathering on a non-treated cedar fence. Not perfect near the groundline but upper portions are good after one application.

I did exactly as instructed. Nothing has change. I'll get out my pressure hose. I wouldn't use it again. Not worth the money I paid for it.
It's a real con.

Used it on a concrete footpath and on a gravel walkpath which was overgrown by moss. Took about a week, but it really done a good job Concrete never looked so good for a long time.

Works great when you want an easy clean and are happy to wait (and read the label). Cleaned my pavers from moss and algae over about 3 months. I've since reapplied it to stop regrowth. If you want the surface to be clean that day, use the blue label one which is spray on / hose off.

Tested the product first of all on a small area of my patio as I was sceptical that it could clean away dirt and lychens from the stone. I followed the instructions to the letter. Needless to say I couldn't tell the treated area from the untreated area - so ineffective was the product. I might as well have sprayed water onto it!

I attempted to use this on concrete patio slabs in my backyard. Even tried a scrub brush.
Did not work.
Seems to work on plastic and not bad on wood.

Works very well on terracotta tiles I find it works a lot better if you use 2 to one not four to one as my roof was sprayed four to I last year left a fair amount on so i sprayed 2 to 1 this time made nearly perfect job as I use water I left spout disconnected over winter for six weeks

We sprayed our outdoor area roof which was covered in lichen and progressively over 12 months it was all gone!. I have since sprayed a terracotta tile roof. Amazing product and it works!

I sprayed the driveway in December 2016, it just now appears to be working in February 2017. I would not recommend using it if cleaning up for a party even in a month`s time. Seems to work, but very slowly. Not recommended for use by people with a short attention span.