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Boat Forum / Building / September 2003Plumbing the Watermaker output?
I have another troublesome detail to deal with. I have this tube that, if everything works the way I planned, will be spewing out half a gallon of fresh water a minute. Now how do I get it into the tanks? I am thinking about plumbing it into the fresh water system between the tank selection manifold and the fresh water pump. That way which ever tank is active gets filled. By changing tanks I can fill them all from one connection. On the face of it it looks like the ideal solution but I am looking for any drawbacks. Anyone want to shoot some holes in my plumbing? :-)  SignatureGlenn Ashmore I'm building a 45' cutter in strip/composite. Watch my progress (or lack there of) at: http://www.rutuonline.com Shameless Commercial Division: http://www.spade-anchor-us.com Could an argument be made for FIFO, using your old water first? What happens if you switch your selector to draw from a full tank? > I have another troublesome detail to deal with. I have this tube that, > if everything works the way I planned, will be spewing out half a gallon [quoted text clipped - 14 lines] > there of) at: http://www.rutuonline.com > Shameless Commercial Division: http://www.spade-anchor-us.com > Could an argument be made for FIFO, using your old water first? Now that is a concern. I designed the engine driven watermaker around the idea of producing 40 gallons while delivering 48 hours worth of charge to the battery banks. (Theoretically that is.) I will have to remember to switch tanks right after the watermaker finishes. > What happens if you switch your selector to draw from a full tank? That's easy. The tanks vent into the cockpit. When my feet get wet I know it is time to turn off the watermaker. :-) >>I have another troublesome detail to deal with. I have this tube that, >>if everything works the way I planned, will be spewing out half a gallon [quoted text clipped - 14 lines] >>there of) at: http://www.rutuonline.com >>Shameless Commercial Division: http://www.spade-anchor-us.com SignatureGlenn Ashmore I'm building a 45' cutter in strip/composite. Watch my progress (or lack there of) at: http://www.rutuonline.com Shameless Commercial Division: http://www.spade-anchor-us.com > Anyone want to shoot some holes in my plumbing? :-) No, don't want to do that but it is generally considered bad practice to fill the tank in service. You stand the chance of contaminating the entire system if there is a problem with product water. Rick Your assuming that your salinity divertor is 'fool proof'?? You may be correct because, while using the product water as it is being delivered, you would stand a better chance of noticing your coffee is a bit salty. My set up will deliver the product water to the tank fill manifold.. I may rethink this since I could fill a tank with bad water and never know it. I was onboard a friends boat and he had the product water line coming to his galley sinks where it ran down the drain until he took a final "taste" sample.. If it was good, he turned a 3 way valve that sent it to the tanks. My HRO system has a remote control/indicator panel with both audible and visual alarms to indicate any fault in the system or product water.. I haven't installed it yet, seems to complicate the system too much. I kinda like my friends simple method. KISS.. Steve s/v Good Intentions You know me better than that! To me KISS is something that gives you Mono or Hepatitis. :-) This system is a result of 30 years in the software business learning never to completely trust a computer. :-) It is as automated as I can make it with push button operation and auto backflush but with mandatory human intervention at critical points and manual overrides everywhere. I added a Hanna electronic TDS sensor wired to a 3-way solenoid. When the TDS drops to acceptable levels the product diverts to a second solenoid and that outputs to the manual sampling tap that I think I will mound near the helm. If it taste OK I push a button to send it to the tanks. > Your assuming that your salinity divertor is 'fool proof'?? > [quoted text clipped - 19 lines] > Steve > s/v Good Intentions SignatureGlenn Ashmore I'm building a 45' cutter in strip/composite. Watch my progress (or lack there of) at: http://www.rutuonline.com Shameless Commercial Division: http://www.spade-anchor-us.com Don't really know how your waatermaker works but what happens if the output goes "sour" after you have sampled and redirected it? I would guess the "automated" monitor you mentioned is most likely "real time" and should catch a failure at any time during a watermaker run. Fred > You know me better than that! To me KISS is something that gives you > Mono or Hepatitis. :-) [quoted text clipped - 33 lines] > > Steve > > s/v Good Intentions As a watermaker membrane ages and fouls it produces less fresh water but the salts don't increase. The TDS sensor would divert the product water if it did get over 200 ppm or so but that is not likely to happen. The main reason for testing and discarding the first water out is that it will be salty. Remember that the process is "REVERSE" osmosis. The high pressure reverses the natural tendency for salty water to migrate through a membrane to less salty water. With no pressure the natural process resumes and salt passes through and accumulates on the fresh water side. > Don't really know how your waatermaker works but what happens if the output > goes "sour" after you have sampled and redirected it? I would guess the > "automated" monitor you mentioned is most likely "real time" and should > catch a failure at any time during a watermaker run. SignatureGlenn Ashmore I'm building a 45' cutter in strip/composite. Watch my progress (or lack there of) at: http://www.rutuonline.com Shameless Commercial Division: http://www.spade-anchor-us.com Leaving the below in for context, are you going to put your configuration on your website? I'm sure others might like to attempt your achievements at bargain hunting and efficacy... L8R Skip > As a watermaker membrane ages and fouls it produces less fresh water but > the salts don't increase. The TDS sensor would divert the product water [quoted text clipped - 11 lines] > > "automated" monitor you mentioned is most likely "real time" and should > > catch a failure at any time during a watermaker run. Yes. The pressure vessels just arrived and I will have the installation complete enough to finish the picture series for the web oage. I have converted the schematics and printed circuits to GIFs and have been working on the narative. Hopefully I can get some stuff up on the server next week and reduce the volume of emails from impatient site visitors. :-) Skip Gundlach wrote: > Leaving the below in for context, are you going to put your configuration on > your website? I'm sure others might like to attempt your achievements at [quoted text clipped - 22 lines] >>>"automated" monitor you mentioned is most likely "real time" and should >>>catch a failure at any time during a watermaker run. SignatureGlenn Ashmore I'm building a 45' cutter in strip/composite. Watch my progress (or lack there of) at: http://www.rutuonline.com Shameless Commercial Division: http://www.spade-anchor-us.com |
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