Water meter for RO

[ManOfKent]

Looking to find someway of measuring the pure water I'm making so that I can claim a rebate from the water company on the water that doesn't end up in the sewer. Does anyone have one they recommend?

It seems that most meters I find require some pressure to measure the water passing through... but my pure water doesn't exactly gush out of the RO, more like a trickle, so wondering if it would register on a meter?

 

[ched999uk]

You will need to contact your water company to see which meters they accept and what their rules are on water taken off site and waste on site - soakaway or drain etc. I believe that you put the meter on the inlet to your RO so mains pressure, then some sort of calc - depending on water board.

 

[ManOfKent]

You will need to contact your water company to see which meters they accept and what their rules are on water taken off site and waste on site - soakaway or drain etc. I believe that you put the meter on the inlet to your RO so mains pressure, then some sort of calc - depending on water board.

Thanks - that's all done. My query was really if anyone has experience fitting a meter, if so would they recommend one in particular? and does it detect the weak flow rate that comes out of an RO?

 

[spruce]

Thanks - that's all done. My query was really if anyone has experience fitting a meter, if so would they recommend one in particular? and does it detect the weak flow rate that comes out of an RO?

What did the water board tell you to do?

Some can claim a sewage rebate on all the water going through the r/o if your waste water is going to soak away. If your waste water isn't going to soak away you can only claim the pure.
But then you will need a second meter to record all your water going through the r/o so you can identify the amount you use as a business expense.

With regard to claiming a sewerage rebate, you will need to fit a meter the water authority specifies.

 

[ManOfKent]

What did the water board tell you to do?

Some can claim a sewage rebate on all the water going through the r/o if your waste water is going to soak away. If your waste water isn't going to soak away you can only claim the pure.
But then you will need a second meter to record all your water going through the r/o so you can identify the amount you use as a business expense.

With regard to claiming a sewerage rebate, you will need to fit a meter the water authority specifies.

Yes - that's all correct as I understand it. The waterboard are happy for me to let them know how many litres of pure I make each month - then I'll receive a rebate on bills. Unbelievably they don't need any evidence etc (although I do record what I make)... they are just happy for me to inform them how many litres I've made. My waste goes into the drain so I can't claim for that... only the pure.
As said at the outset, I understand the process... I'm just not sure a water metre that usually measures a steady flow of water will be able to measure the trickle of water coming out of an RO... and if it created any pressure that would potentially affect the RO performance.

 

[spruce]

Looking to find someway of measuring the pure water I'm making so that I can claim a rebate from the water company on the water that doesn't end up in the sewer. Does anyone have one they recommend?

It seems that most meters I find require some pressure to measure the water passing through... but my pure water doesn't exactly gush out of the RO, more like a trickle, so wondering if it would register on a meter?

I think you mean flow. There is a difference between pressure and flow. They aren't the same although flow rate through a pipe increases as the pressure increases to a point.

 

[spruce]

Yes - that's all correct as I understand it. The waterboard are happy for me to let them know how many litres of pure I make each month - then I'll receive a rebate on bills. Unbelievably they don't need any evidence etc (although I do record what I make)... they are just happy for me to inform them how many litres I've made. My waste goes into the drain so I can't claim for that... only the pure.
As said at the outset, I understand the process... I'm just not sure a water metre that usually measures a steady flow of water will be able to measure the trickle of water coming out of an RO... and if it created any pressure that would potentially affect the RO performance.

Most have a small little paddle inside that turns with water flow. A water meter still works when a small leak develops in the pipework.
Nevertheless, you raise a good question regarding pressure. I looked at one and it stipulates 1mpa.
Hopefully someone will come on with a meter they are successfully using.

 

[P4dstar]

I am using a WRAS approved water meter from Amazon. It’s connected at the tap end though. I need it so we can evidence to our landlord how much water we’re using. Search for WRAS water meter and I’m sure Jeff Bezos will sell you one. It counts the amount of water through it, it’s counting volume not pressure so I imagine you should be fine.

 

[trevor peacock]

I use southern water, i rang them years ago, estimated how water I use for work. We had a chat they agreed with my estimate and I get the same discount every year. works for me

 

[ManOfKent]

Thanks everyone - very helpful