Reverse Osmosis / De-ionization

[Stevenlatham01]

Been looking at buying a Reverse Osmosis / De-ionizationunit so I can make my own RO water. Which one is best value for money? Was looking to spend around £100 (about $125) if possible. My tank and sump will have around 145 US gallons so prob need around 100 gallons a day version. My water pressure is very good. Water temp around 46 degrees fahrenheit.

I need the connection to the water pipe to be under the sink, so about 50cm above ground floor. Can I put the RO/DI unit higher than where it connects to water pipe? Also, does the RO/DI unit need to be placed higher than the water container its going into? In other words does it need gravity to work or is the water pressure enough?

 

[mcgyvr]

Are you on well water or city water?
Do they use chloramines?
Define "very good" pressure? >50PSI?
Any idea of your water TDS reading?

Yes water pressure is sufficient to put the water up/out..

 

[Stevenlatham01]

We have city water and they use chlorine here. Not sure of the water psi but when I turn the tap on full water goes all over the kitchen so we only need to slightly turn it on for filling up drinks etc. I don't have a TDS reader yet but off the website these are the reading averages of the water.

Alkalinty (Average mg/l) 132.0
Calcium 56.98
Magnesium 10.10
mg/l or ppm CaCO3 183.9
Degrees Clark 12.9
Degrees French 18.4
Degrees German 10.3

 

[Stevenlatham01]

Are you on well water or city water?
Do they use chloramines?
Define "very good" pressure? >50PSI?
Any idea of your water TDS reading?

Yes water pressure is sufficient to put the water up/out..

When you say water pressure is sufficient to put the ro/di unit above where it's connected to the mains water pipe, does that mean I can put it about a further meter higher? Would that not effect the ro/di production rate?

 

[homer1475]

Placement of the unit doesn't matter as its driven off water pressure. My unit sits higher then the incoming water, and I send the product water up 10 feet, and across the attic about 25 feet with no issues.

Sent from my STV100-1 using Tapatalk

 

[Stevenlatham01]

Been looking at a TDS meters to test my water. Any suggestions?

Anyone used a D-D TDS meter for £23 (from D-D The Aquarium Solution Ltd)? They also do Seawater Refractometer but it's about £42 which seems more expensive than others but they say it's much more accurate than others. Is it worth the extra money or are they just making it up?

 

[nereefpat]

All TDS meters should basically be the same. You can get a hand held one, or a handy in-line one.

42 pounds seems high for a refractometer here, but I don't know about where you live.