Ian, adding the third vac to the ninga increases the mercury lift from i think, 15 could be 17 cant remember to 20 its a noticable difference if you put your hand over the vac hose you can really feel the difference.
Gary, do you think i should get the tank heater? im thinking no at the minute as its a extra £200 and i cant see me using it as i will be filling tank with hot tap water as well.
The thing is i only have limited hot water though as i live in a 1bed flat, for example if i run a bath by the time its 3/4 full the water will run cold. Also do you drain out the left over water at the end of the day or just top up everymorning?
I was hoping to just top up with hot (would be easier) only problem then is the left overs gona be cold so its gonna end up just warm in the tank, also not sure if its ok to leave overnight with chems in water, would all the chems sink to bottom?