– 3pk x 70g Toilet Fresheners, Ocean Scented Blue Cistern Blocks, Last 1000 Flushes, Prevents Limescale, Cleans Rims, Strong Air Freshners and Loo Cleaner for Bathroom Air, Room, Home Airfreshener

I think some people must be using these wrong if they are saying they don't colour the water blue or they dont last long. I put mine in about 5 weeks ago and it's still making the water that is Flushed out of the cistern a blue colour. Admittedly though the water doesn't seem to have any scent unlike the product itself before you put it in, which absolutely reeks. I'm glad it doesn't smell like that when in use. I use it along with a rim block cleaner like Max Flush 5 or Bloo to give the toilet a pleasant aroma. Also I must add that I live on my own so there is probably at least 30 minutes between each flush which is well enough time for it to give the water in the cistern a good blue colouring. Because it will need a good length of time between flushes for it to colour the water. You can't expect it work very well if the toilet is being flushed every two minutes. For those saying the wayer coming out isn't very blue, maybe the addition of one for each member of your household each time might be the answer?

I took a punt on these as a cheap alternative to Sani Blue ones. These make no discernable difference to the water. No scent and no colour to the water beyond an extremely pale tint. Don't waste any money on these. Sani Blue costs a lot more but even if you have guest, each flush is scented and dark enough to hide 'the difficult marks some people leave behind. Even overnight these don't do anything. awful. Total rip off.

I’ve started to use the second unit and it’s not working. The product is solid and not producing the blue fluid for the toilet cittern. Can you please send me one as a replacement. Thank you.

Light absorbency. I went ahead to use 2 with no difference and no scent, no freshness. Waste of money

These are useless and lasted literally 3 flushes, used all 6 in a day !!!!

They don’t dissolve well in cistern very light blue colour when flushing . Checked the container and contents appear to be still solid inside it. I may have received old product and solidified but personally won’t buy again

Great

These are a waste of time they solid in the toilet systen and do not make the water blue at all. I've even tried to shake them in water. And cut with a knive and they are rock solid , dont buy waste of money .