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.

I got some free ones from South West Water which were a bit smaller. These are a tiny bit bigger but everything still flushes (got 3 kids) but sometimes toilet roll is left if kids use too much. Definitely a water saver if u resist re-flushing!

The seller was great the product is terrible, there are better alternatives on the market. Essentially this is a bag that the stopcock sits in the water around the bag drains and the water in the bag drains slower... the reality is that the side of the bag catches the stopcock arm which pushes the side of the bag down making the water displace the bag and tip or slowly float about.I had to buy another product that actually displaces the water in the cistern so it doesn’t fill as much...much simpler.

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

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.

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 bought the two. One for myself and gave other to a friend. Two houses saving water. Bargain. So easy to install.