Product reviewsPrism Toilet Cistern Block, 70g - 3 Count

Doesn't last long.

I've only had it in for about a week and already the blue is very pale. I live on my own so it should last ages. There is no fresh smell just nothing. When I've used others the colour lasts and they smell lovely with every flush. So I don't think I will be buying more of these as I don't think they are worth it. Read full review...

Verified purchase:  Yes | Condition: new | Sold by: home-design-6571

Not Feeling Blu

Tried these to compare with the 6 pack blu loo blocks I buy from £land ect. as they claim 1000 flushes per unit.....sadly they don't colour the water to any great extent, states they keep ur loo smelling fresh n clean....I don't notice any "ocean fresh" fragrance from using them, and bowl needs same cleaning I always do so no real benefit there....they can be a bit bulky to drop in ur cistern if it's a compact unit like mine,....but I think I'll stick with the blu loo £landers as they give nice colour to the water...for a brief time.....Read full review...

Verified purchase:  Yes | Condition: new | Sold by: colossaldeals

Shoudnt use if you have a septic tank.

I didnt know this product shouldn't be used in a toilet with a septic tank. I bought it because the enamal in the bottom of our toilet has worn. Thought blue water would be more pleasant to look at.r>
So haven't used product, gave it away will look for something more environmentally friendly.Read full review...

Verified purchase:  Yes | Condition: new | Sold by: colossaldeals

Rubbish product.

i have purchased these before from Tesco and they lasted ages, but these only gave us a couple of days of a blue flush then back to normal, very poor quality and quite simple these do not work, absolute rubbish ////.Read full review...

Verified purchase:  Yes | Condition: new | Sold by: shumaxx2013

Don't waste your money

This product is useless. After placing it in the cistern as recommended, it did almost nothing to the water. I had to turn it upside down to get any effect. Even after this, the water was still not consistently blue. I bought 3 bottles, for 3 toilets and they are all the same. I would not recommend this product. Read full review...

Lack of blue

Only maintains blue if not used regularly
Ie not good for family

Verified purchase:  Yes | Condition: new | Sold by: colossaldeals

Would not buy again

Glass container with plastic lid, after a few days and flushes the product doesn't escape from the jar very well. I had to lay mine on its side this seemed to help.

Verified purchase:  Yes | Condition: new | Sold by: shumaxx2013

very easy to use

i used to use the blocks but they just kept blocking my cistern

Verified purchase:  Yes | Condition: new | Sold by: colossaldeals

Seems good

Too new to advise on length of action, but at present appears to be doing what is claimed

Good value for money

This is my second purchase love this stuff

Verified purchase:  Yes | Condition: new | Sold by: pick_and_sell