Buckeye with pics

[Richard]

DrMark - This is the topoff unit I am using which would provide safety and allow you not to use a seperate reservoir. It would just go in line so the float valve would become a backup in case the solenoid ever failed somehow. Mine's worked flawlessly for 6 years now.

http://www.spectrapure.com/St_alc_p1.htm

[Bill S]

Richard, that's EXACTLY what he needs - but he'll still get a TDS "leak" with that setup. When the RO/DI unit kicks off, there's some seapage around the membrane. When it cycles back on, it takes a bit of flow to rinse it away. So, regular cycles are not good for TDS.

BTW, Richard. How ARE things? We miss you and Mark.

[Richard]

Richard, that's EXACTLY what he needs - but he'll still get a TDS "leak" with that setup. When the RO/DI unit kicks off, there's some seapage around the membrane. When it cycles back on, it takes a bit of flow to rinse it away. So, regular cycles are not good for TDS.

The level controller lets the water level in the sump drop about an inch before it opens the solenoid and refills the sump. Still not as good as having a large resevoir but the ro unit won't cycle nearly as much as with just a float valve.

BTW, Richard. How ARE things? We miss you and Mark.

All is well except my, uh, let's call it a sabbatical is coming to an end so I have to start job hunting next month...yuck. I've become really good at being a bum, too bad it doesn't pay better lol.

[DrMark]

Appreciate the responses. Looks like the best way is to come up with a topoff resevoir and only turn water on from RO/DI to fill it. Thats how I do it with the other tank (115gal). With this TDS leak, I have prob had higher TDS in this tank from the outset. Certainly hasnt hurt the tank any.
Will need to think about how to proceed.
Mark

[profntbtr]

ok i saw an article on exactly this that included pictures of how to do it, but i can't find it, so i will attempt to explain. basically you place the float valve at the end of a plastic tube (think 64 oz gas station beverage container) that extends almost to the bottom of the sump. place a one way valve on the very top of it, so the air can escape as the water fills the sump. when the float valve switches off the water level in the tube will remain the same until the bottom of the tube is no longer under water, at which point the water will flow out and start the process over again, hence preventing the ro unit from cycling on and off constantly.

[LoneStar]

Appreciate the responses. Looks like the best way is to come up with a topoff resevoir and only turn water on from RO/DI to fill it. Thats how I do it with the other tank (115gal). With this TDS leak, I have prob had higher TDS in this tank from the outset. Certainly hasnt hurt the tank any.
Will need to think about how to proceed.
Mark

Do you have room on the side of the tank to have an enclosed end table made? You could either make a custom reservoir container for the inside or find a container online and make it work. Have a hinged top so you could get access to it now and then. From the outside it would just look like a piece of woodwork. Place some framed photos or a sculpture on it to make it match the rest of the rooms decor.....

[DrMark]

Do you have room on the side of the tank to have an enclosed end table made? You could either make a custom reservoir container for the inside or find a container online and make it work. Have a hinged top so you could get access to it now and then. From the outside it would just look like a piece of woodwork. Place some framed photos or a sculpture on it to make it match the rest of the rooms decor.....

Nope. In the picture (old picture), hard to tell, there is only one "free" end and that is an arched walkway to the home office. There is a little space left under the tank that is odd shaped where I may be able to fit a custom shaped top off resevoir, would guess in the 15-20gal range. That is likely the route I will take. For now I will manually turn on the ro/di to top off the sump once a day.

[DrMark]

just looked closely at the pic, must be over a year old pic, because I have a beautiful orange cap I have grown from a silver dollar size to almost basketball sized at the top on the near side. Really need to get more pics.
mark

[jrsatx20]

you r right dr mark i can see the cap. j/k

[Mr Cob]

you r right dr mark i can see the cap. j/k

LOL.

You should take some pics and show us Dr Mark....