Do i need to change my hot water cylinder if i am fitting another cold water storage tank?
Your cylinder is 108 litres, your tank is 100 litres and constantly filling, you don’t even need the extra tank for this cylinder, check the output of the pump, you can then work out how much hot water you need for a (10 minute shower), a 10 litres minute shower will run the hot water for 20 minutes (if equalised with cold), unless the cylinder is not heating fully.
