I have used a D-D (Deltec) top up, it was about £140 - I had a tank built to house cold water from the mains with a ball cock and an overflow to waste in case it sticks open, the sump also overflows to waste so I have some saftey built in. My dosing pump is also a lift but I will heed the warning and decant it in to maybe 2weeks to 4 weeks supply.
There are 3 dd top ups to chose from - solenoid activating, low voltage pump (supplied) or 240volt mains to operate your own pump (I have spares)
I will post up pics of the coldwater tank soon - it fits next to my sump.
There are 3 dd top ups to chose from - solenoid activating, low voltage pump (supplied) or 240volt mains to operate your own pump (I have spares)
I will post up pics of the coldwater tank soon - it fits next to my sump.