so i just finished up having an entirely new water supply hooked up to my house. my old well had high nitrates, iron, ph 6.0!, and was a pretty shallow well. so i now have a 140ft deep well with, water conditioner and ph neutralizer, i also installed a dual output 150gpd rodi unit so i have ro drinking water and di for the tank.
so old well stats
nitrates ~20ppm
ph-6.0
tds ~220
new well before neutralizer and rodi
nitrates -0ppm
ph-6.4
tds- 55! yes 55 with no filter or anything
after neutralizer ~ 80 (mineral bed neutralizer adds mineral content) but still 80 out of a well is great average city/well reading are 200
tds after ro - 30 not great but im gonna keep checking to see if that comes down
tds after di - 0ppm! oh yeah perfect
so i can produce 150gpd of rodi water so if anyone close needs some for water change or top offs just let me know
Wow that’s crazy I saw a three truck convoy in Dover that puts in wells earlier today. Maybe they put one in at your place.
I’d be surprised if your 150gpd unit makes 150gallons in 24 hours. Typically the quoted rate is with high water pressure and the perfect temperature. Even in the summer time well water is cold.
30 is VERY high after RO, if it doesn’t come down call up both the company who makes the RO and the company that sold it to you.(often, but no always the same company) It may be the RO isn’t seated properly and there is some water that just hit the prefilters coming through.
Are you using one or two DI at this point? Two will help you keep 0tds all the time with out prematurely tossing your DI. It pretty much pays for itself to use two DI at a time though most people don’t typically understand that when they first purchase.
I’m very glad to hear there is an area in Delaware where you can get 80ppm out of a well. My girlfriend works for the state as an Environmental scientists and I hear about how bad the ground water is all over the place about 6-7 times a week.
yeah and the 80 is actually higher than the well because of the ph neutralizer unit. and the 55ppm was tested by the water treatment guy who had a much nicer tds meter than mine
Another good thing is that I’m only starting at 80ppm the so its not working as hard to bring it down Idk if that means the filter material will last longer or not
It means your RO membrane should last a good long time - it won’t clog from the deposition of scale causing minerals - a.k.a. hardness (primarily Ca and Mg) and that your DI should also last a long time.
[quote=“Buckeye Field Supply, post:11, topic:4697”]
It means your RO membrane should last a good long time - it won’t clog from the deposition of scale causing minerals - a.k.a. hardness (primarily Ca and Mg) and that your DI should also last a long time.
Russ[/quote]
Cool… and my tank now is only 46 gallons so even at half capacity of 75gpd its more than I need since a 20% water change is only 10 gallons
there are few people I trust in the business end who have the knowledge and “customer at heart” than russ. he saved me way over $100 and his di is the longest lasting ive ever used!
[quote=“dunk, post:14, topic:4697”]
russ how do you feel about permeate pumps with your membrane, is it a filmtec membrane?[/quote]
permeate pumps work well - but they won’t make up for low feedwater pressure. They are only for use when you are feeding RO water to a pressurized tank.
I have a 75 GPD unit. Water coming out of the tap is only 20 psi and I got 70-100 psi pump. Now the water is coming out at 80 psi. Is that OK to run at that rate? or will it ruin my RO unit. I know optimum psi is 50-65 psi, but I can’t get it any lower than that or can I. Thank for your help.
[quote=“moliken, post:16, topic:4697”]
russ, you sold me a reduced flow restrictor, a 75 for my 100gpd membrane. i couldn’t be happier, would something like that work for the poor dunkhead[/quote]
ill give you dunkhead lol i don’t need a flow restrictor, don’t make me jump on the pick on moliken train lol PBJ!
[quote=“reefman66, post:17, topic:4697”]
I have a 75 GPD unit. Water coming out of the tap is only 20 psi and I got 70-100 psi pump. Now the water is coming out at 80 psi. Is that OK to run at that rate? or will it ruin my RO unit. I know optimum psi is 50-65 psi, but I can’t get it any lower than that or can I. Thank for your help.[/quote]
80 psi is more than OK - its great! Where do you have the pump - before the entire system?
Optimum isn’t 50 to 65 - thats just the test conditions the manufacturers use.
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