Setting a dose pump between RO container and Kalk reactor?

[SmknReefer]

Hello,
I have a question regarding setting my dosing pump between the RO container and my kalk reactor.

The kalk reactor instructions say to set the dosing pump between the RO container and the kalk reactor. I'm assuming the dosing pump will push the water through the reactor into the sump.

In doing this every drip will cause the RO\DI filter to turn on, fill the resevoir, then turn off (once the water drops below the float valve).

I've heard that this is detrimental to the RO\DI filtration system, the constant turning on, filling a few drips, then turning off. Does this practice ruin the RO/DI membrane and associated filters or is OK to do this?

Do I have to set up another RO/DI resevoir to handle the dosing pump?

Thanks for any help.

 

[Anonymous]

It's not OK but it doesn't ruin the RO membrane. Quite a few impurities get through the RO when it first starts up and then cleaner water follows. If you just start it up run for a gallon and then shut off then the water from the RO isn't as clean as it could be.

The DI will clean up the problem but it will use up the expensive DI beads a lot faster.

Can you turn off the water supply until the water level in the resevoir is low?

Are you using an electronic or mechanical shutoff?

 

[Anonymous]

Yes, the RO creep will make the water not as good as it should. Use an electric solenoid to turn off the RO input water so that dosing will not turn the RO filter on for no reason.