ULTIMA-PLUS XPMY1356 Patio Cleaner & Green Mould And Algae Remover,Blue

I was sceptical at first. I’ve a porcelain patio down, with a natural stone bin store area, and during the winter the bin store had started to get very green. After looking on Amazon I stumbled upon this product.I exaggerate not, 3 days after spraying the bin store and some of the jointing on the porcelain paving area. All the green was gone. I was a bit taken away how well it worked and quick.Defiantly recommend this for moss control on patios!

Sprayed this over porcelain slabs & within two days the green mould that had built up over winter was gone . Never scrubbed it just sprayed on & left , worked on wood garden sleepers too

Bought this to sort out the green algae in my back yard.Easy instructions on the bottle and followed them by mixing the Product ratio with water. I used a watering can and poured all over my back yard.A few hours later I went out to check the progress and was impressed with what I saw. The green algae had turned brown as it was meant to.It's been over a week now and no signs of algae anywhere. I'll definitely be using this again.Make sure that it isn't going to rain for at least 8 hours after you apply.

Not as effective as I would like

So yes, it worked. 24hrs and the algea has nearly gone, before I used to use a strong bleach leaving a horrid stench for a while, but this is smelless compared. This stuff is real good, I didn’t think in a day I would see a difference because it’s a biocide but I was wrong. Will post an update on how it goes/ how long it lasts.I didn’t follow the 1:9 ratio as I was in a rush so this mix was a 1:7/1:8 ratio. Would recommend as it’s by far the cheapest about, thanks for the good product

Tried this after my fencing and deck became full of algae after this particularly wet winter and was hyper impressed! On the slabs you could almost see the green disappear on the fence and deck by the end of the day it was virtually gone, by the next day completely! Oh it is super simple to apply also, I used the cheapest spray pump I could find which was also great! Fabulous product and I have just ordered more for the front garden!

I have only tried a small area with Ultima Plus xp, as the weather is not giving me a big enough window to treat my whole shed,, The guide lines advise that the algae/ moss killer works best over three dry days,, however I got a day and a half, free of rain,and I could see that the product did remove the algae on the small area which I treated,, so far impressed and delivery was very fast, so an easy 4 stars, perhaps 5, when I try it out further

An addendum to my last review - as I noticed that this stuff continues to work for up to 6 months. Blackened tops of pillars are now back to their original beige colour. Block paving is much clearer and lighter in colour against untreated paving that looks black and slippery. Moss and green mound on my roof where water runs off stays aways for a good 6 months after applying.I’m buying it again!This stuff really does work if applied in dry conditions. The downside is that it too 2-3 weeks before you could really see the difference - but it has definitely worked. I had identical green moss on my roof to that of my 2 neighbours (same style house) and 3 weeks later and mine has all gone and theirs is still there! Very easy to apply, and does exactly what it claims to. For very bad areas it may need another application - and on block paving was a little harder to see the results - but where it was slippery it isn't anymore