Apparently cistern capacities were reduced from 1993 in order to save water. However, this modern "water saver" means that on many occasions repeated flushings are needed to empty the toilet bowl, so that effectively more water is being used! This may require 2, 3 or 4 flushings so the water wastage is enormous.
Waste pipe problems aside, if its a dual flush check you are actually working the full flush button and that the mechanism is working properly and not stuck operating only the half flush. If then you look in the tank both the total water level in the tank (white screw at the filling valve) and the quantity of water let go for each full and half flush (blue parts below, in the flush mechanism) can be set to different levels. Yours might be set to the minimum
Waste pipe problems aside, if its a dual flush check you are actually working the full flush button and that the mechanism is working properly and not stuck operating only the half flush. If then you look in the tank both the total water level in the tank (white screw at the filling valve) and the quantity of water let go for each full and half flush (blue parts below, in the flush mechanism) can be set to different levels. Yours might be set to the minimum
Waste pipe problems aside, if its a dual flush check you are actually working the full flush button and that the mechanism is working properly and not stuck operating only the half flush. If then you look in the tank both the total water level in the tank (white screw at the filling valve) and the quantity of water let go for each full and half flush (blue parts below, in the flush mechanism) can be set to different levels. Yours might be set to the minimum
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Well, yes... but apart from providing you with a forum in which to vent your frustration I'm not sure how you think we might help. I have the same problem with a dual flush cistern, but in my case I know that the root of the problem lies in the fact that the soil pipe leading from the bowl has insufficient fall (because the previous owner of my house moved the toilet further from the down pipe). Maybe something like this is contributing to your problem too?
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That is a common problem with allot of low capacity toilets . They didn't redesign the trap configuration they just reduced the water capacity, in turn creating a multiple flush problem. So there isn't much water savings, actually more water is wasted. Unfortunately the real option here is to find a new design low capacity toilet. You can try to adjust the water capacity in the tank, but it wont really add enough to make it work much better. Sometimes they line the tanks with styrofoam to reduce capacity, if yours has this in the tank you can cut a portion or most of it out and increase the capacity significantly. I don't know if you are able to get Kohler toilets in your country but they do work very well. I hate to tell people that hey need to replace the toilet, but if it doesn't work what options do we have.
the liner is there to prevent the tank from condensate on the outside (and leave a puddle on the floor) in the hot months due to the cold water inside, pretty much like your beer glass is all wet outside in summer... The liner is not there to reduce the water level. Dual flush toilets have a bunch of way to set the flush quantities, see the solutions
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