Nortembio Concentrated Natural Flocculant, 24 Weeks. Turbidity Remover for Big Pools and Spas. Clarifier Agent for Clear Water. Organic Product Safe for the Whole Family.

I was not sure about this after reading some negative reviews but gave it a go. I had used a lot of normal clarifier before, changed the sand in my filter, but my pool water was still cloudy after about 2 weeks. Once I applied this it cleared within 36 hours (with two applications of the flocculant in this time). I backwashed perhaps 7 times in this period and vacuumed to waste 3 times! The water is now crystal clear. Can't say for sure but I think the frequent backwashing was important as was at least one of the vacuum to waste actions.

Useless! Complete waste of money.It has actually managed to make a pool dirtier than it was in the first place. Water was clean but wanted to keep clean longer.This has causes the opposite and has turned the water light green over night (filter on too).I shall stick to tablets for now on.

Works ok, but if you really need to clear get aluminium based flocTook ages to restore water clarity.Not great value as professional floc available from local pool suppliers and works much better

Does exactly what it said it would do in 24 hours, everything was left on the pool floor - vacked up to wast added some pool spakle and the water was shining...

I’ve looked after my pool 33 years. Floculant , after spring brush is meant to mix on recirculating, enable particles to fall to bottom to facilitate vacuuming. This product sits on the surface, in useless clumps! The instructions, a millimetre high, instructs to circulate on filter and if it actually mixed with the water would presumably block the filter. I should have taken notice of the other poor reviews. Absolutely useless!

I got this given the reviews were good I used the correct amount for our pool and it's done absolutely nothing other than leave a light film across the top of the pool leaving it more cloudy that it originally was. Don't buy like me thinking it's going to be good when indeed it's totally useless and does nothing to clean the pool!

I bought this only as the delivery was faster than my usual brand and wish I had just waited. Doesn’t bind the algae, just sits there n the top of the water in pasty blobs.

Didn't work as stated, it just created a gooey slime so I had to change the water and filters anyway