Clean It Up

UK Window Cleaning Forum => Window Cleaning Forum => Topic started by: Amazin on June 04, 2023, 12:53:09 pm

Title: How much DI resin do I need for this?
Post by: Amazin on June 04, 2023, 12:53:09 pm

The PPM reading after the RO unit (brand new) is around 30. After DI unit it's 10PPM.

I'm thinking it's time to change DI resins. But how much do I need for that? (Please see photo attached)

Title: Re: How much DI resin do I need for this?
Post by: Ascjim on June 04, 2023, 01:06:14 pm

Yes time to xhange

Title: Re: How much DI resin do I need for this?
Post by: Don Kee on June 04, 2023, 01:28:14 pm

πr2 x the height.

Allowing for the fact it’s coned at the top,  6.5litres give or take.

Title: Re: How much DI resin do I need for this?
Post by: SB Cleaning on June 04, 2023, 07:40:34 pm

A reading of 30 on a brand new RO is very poor, it should be a lot lower than that.

Title: Re: How much DI resin do I need for this?
Post by: Splash & dash on June 04, 2023, 07:45:24 pm

Quote from: SB Cleaning on June 04, 2023, 07:40:34 pm

A reading of 30 on a brand new RO is very poor, it should be a lot lower than that.

It depends what the tap TDS is also takes a while before a new ro works as efficiently as it should

Title: Re: How much DI resin do I need for this?
Post by: Spruce on June 05, 2023, 07:06:42 pm

It's an 11 litre vessel. The instructions say to fill to the line. So it will be less than 11 litres is my guess. :D :