[firefly123]

been doing some test to see how long i can make resin last di only and now i can make a 15 litre di last 30 weeks using 3000 litres of water a month this may go up to 35 weeks will keep you posted not bad is it

[Spruce]

been doing some test to see how long i can make resin last di only and now i can make a 15 litre di last 30 weeks using 3000 litres of water a month this may go up to 35 weeks will keep you posted not bad is it

What is your input tds?

[firefly123]

my input is 60 tds

[Mike #1]

been doing some test to see how long i can make resin last di only and now i can make a 15 litre di last 30 weeks using 3000 litres of water a month this may go up to 35 weeks will keep you posted not bad is it

Elaborate a bit such as how fast is the flow of water going through DI vessel what resin you are using etc . Mike

[firefly123]

the flow is going through as fast as it can

[dai]

It will last a lot longer if you get another DI vessel. My TDS is around 57 so much the same as yours. You have two vessels, vessel A and vessel B. Connect vessel A to your tap and use it until your TDS begins to rise, Then use another pipe to connect the outlet on A to the inlet of B. Say the outlet reading from A is 005ppm, your resin in B is only purifying 005ppm water instead of 60ppm from your tap. Keep an eye on the TDS reading from A, and as soon as it gets to 60ppm the same as your tap change the resin. You now have water from your tap going through vessel B first and the connected to vessel A with the new resin.
This is how using two vessels saves you loads on your resin costs. Dai

[andyM]

You can make resin last a bit longer by emptying it out of the vessel, mixing it up and putting back it the vessel again.

[oldman]

You can also make your resin last a lot longer by slowing down the tap flow into the vessel.