2x hippo water saver - save money on water bills every toilet cistern flush

Great, saves water

Very simple idea but, the best ideas are usually simple ones. Seems to work fine and takes less water to refil your cistern. If on a water meter will pay for themselves very quickly.

These Hippo bags only fit the old type cistern with a float, it will not fit cassette type cisterns, will have to return this item

DONT BUY. Waste of money, doesn't do anything. Doesn't save water. I have found the solution to saving water and money is 1/2.a house brick. Instead of this crap. If I could send back and get a refund I would. I should of read the reviews 1st.

Saving water in cistern

Received quickly and as described. Definitely saving water. Thank you.

Unfortunately this otherwise simple bag device doesn't work well in my cistern. The cistern is unusually tall and too narrow for the bag to be spread open correctly at the base and worse is that my cistern float, being cylindrical rather than spherical, has, in testing, got caught by on the side of the bag such that it could cause the cistern to overflow (wasting water rather than saving it). I have decided it is too risky to use. I'm sure that it would work OK in most cisterns - maybe if I change the float it would work better. I think the manufacturer should give minimum dimensions of the space in which the bag needs to sit rather than just the tank volume.

I have had bags in my system in the toilet for years I recommend these they will save water and money.