im fed up with proving wimpo wrong . if your main concern is the life of your resin . then put your di before your tank and fill it with pure . this is what i do . i put my tap on trickle abot 4 in the afternoon and by 7 in the morning it is full . 15 hours to fill and 7 hours to empty while working . my record for filling my tank is 50 hours over the weekend . giving more resin life than than having the di after the tank .
Oreyt Bazza
Now, this is what I totally fail to see any logic in whatsoever!
Why on earth would you do that? Spend 15 hours filling your tank (just think about winter for one) when it could be done in 15 minutes!
I can guarantee you Bazza, at both flow rates here (pump Vs trickle mains) there will be virtually zero, if any at all saving on resin & even if there was, it would be so minute that your method still presents itself as ridiculous!
This is all I have to do when I come home from work- Pull up, plug hose pipe into hozelock male tank filler & turn tap on! That's it, done 'till I start work the next day.
I have a mini torbeck float valve so it's impossible for me to over-fill too, it will just cut off once full so I don't even have to stand there & wait 10/15 mins 'till it's full.