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Check Valve Help ! Slightly OT

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  • Doozer
    replied
    I think it is recommended to run vinegar through your coffee maker
    every so often to clean out the mineral buildup.
    Lack of maintenance would not be the first time a machine got fouled up.

    -Doozer

    Leave a comment:


  • JoeLee
    replied
    Originally posted by J Tiers View Post
    Water goes into the heater through the valve in the flow direction by gravity from the reservoir. When the water boils in the heater tube, the steam forces the water out. The valve is intended to ensure the water goes up and into the tub of coffee grounds, and not back into the reservoir.
    That's it. Pretty simple. I cleaned everything again, put it back together and it's working fine. So not sure what happened other than the check ball got stuck ?? or some hardened minerals or ground particles prevented it from sealing.

    JL.................

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  • eKretz
    replied
    Originally posted by JoeLee View Post
    I don't have a 3D printer as I mentioned previously. One of these days maybe. But how would it print a ball inside the cage without having the ball fused to the rest of the part ?? I've seen printed parts, they look layered and not perfectly smooth. If the ball was printed like that it wouldn't be perfectly smooth and wouldn't seal. How would you address that issue ??

    JL................
    You probably wouldn't. Or maybe the seat could be printed with silicone rubber or some other type of filament that would have some give and still seal well against an irregular surface. In any case, I already mentioned it probably wouldn't seal worth a toot. I don't know exactly how it works when they print things fully assembled, I just know that I've seen it done plenty of times. I have been to a few manufacturing trade shows that have had demos and they do some pretty cool stuff these days. One I recall was a scissor lift table that was printed in one go with threaded shafts, nuts, bearings and all. Pretty neat tech, getting better every year.

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  • J Tiers
    replied
    Water goes into the heater through the valve in the flow direction by gravity from the reservoir. When the water boils in the heater tube, the steam forces the water out. The valve is intended to ensure the water goes up and into the tub of coffee grounds, and not back into the reservoir.

    Leave a comment:


  • Noitoen
    replied
    I don't understand how that system works. If it's a suction tube, the valve in that direction will never let water into the tube.

    Leave a comment:


  • JoeLee
    replied
    Originally posted by Doozer View Post

    I have seen coffee makers for $5 or so at the Salvation Army thrift store and Good Will thrift stores too.

    -Doozer
    Never venture into those places. I can well afford to buy a new coffee pot. But there is nothing wrong with this one other than the valve.

    So............. I took it apart this morning after waiting twenty minutes for 4 cups to brew and ending up with about one cup, the rest went out in steam.

    My thought was perhaps the ball was cracked and wouldn't float, and I wasn't even sure if it is supposed to. So I tested it. It floats and I can't see any irregularities in it's surface. Unlikely it would stick. I did blow through the hose and the ball seals but not 100% sometimes it seals pretty good and sometimes not so good. That's why I was thinks surface irregularities in either the ball or the tapered seat.

    Maybe some particles prevented it from sealing. I'll try again. The heater tube is clear.

    JL.................

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  • Doozer
    replied
    Originally posted by Paul Alciatore View Post
    Nothing unusual about that. The only thing that differs is your degree of subtlety, which usually is not very great.
    How can I make you happy Paul ?

    😘😘

    ----D

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  • Doozer
    replied
    Originally posted by wierdscience View Post

    Spinthrift...I got my last one at a yard sale for $2 and I have to say, that dead guy sure bought some good appliances.
    I have seen coffee makers for $5 or so at the Salvation Army thrift store and Good Will thrift stores too.

    -Doozer

    Leave a comment:


  • JoeLee
    replied
    Originally posted by eKretz View Post

    Actually you can print it fully assembled since the 3D printers print a thin slice in cross section at a time. Fully functional multiple piece assemblies are printed in assembled form all the time. However, I wouldn't think any lower cost 3D printer would have the resolution to print a check valve that doesn't leak.
    I don't have a 3D printer as I mentioned previously. One of these days maybe. But how would it print a ball inside the cage without having the ball fused to the rest of the part ?? I've seen printed parts, they look layered and not perfectly smooth. If the ball was printed like that it wouldn't be perfectly smooth and wouldn't seal. How would you address that issue ??

    JL................

    Leave a comment:


  • JoeLee
    replied
    Originally posted by jdunmyer View Post
    Regarding mineral buildup: I have very hard water that also has a bunch of iron in it. Every couple of months, I fill the Mr. Coffee with half-and-half vinegar and water, then run it through. Run 2 or 3 more cycles with just water to rinse it out, and I'm good to go for another 2 months or so. If I neglect it for a couple more months, it still operates, but is noticeably slower to brew a pot.
    I've always used filtered water from the refrigerator so no mineral build up issues. I do run distilled white vinegar through it about once a year but I don't think vinegar breaks up much of the white mineral buildup. The heater tube is clear.

    JL..................

    Leave a comment:


  • wierdscience
    replied
    Originally posted by Doozer View Post
    Do you want me to just send you $14 so you can buy a new coffee maker?

    -D
    Spinthrift...I got my last one at a yard sale for $2 and I have to say, that dead guy sure bought some good appliances.

    Leave a comment:


  • eKretz
    replied
    Originally posted by JoeLee View Post
    I don't have 3D printing capabilities and how would you print it with the ball inside ?? Would have to print three pieces. It's a simple thing, the ball isn't sealing all the time.
    Why buy a new coffee pot ? Should be an easy fix. Easier if a replacement part can be found.

    JL.............
    Actually you can print it fully assembled since the 3D printers print a thin slice in cross section at a time. Fully functional multiple piece assemblies are printed in assembled form all the time. However, I wouldn't think any lower cost 3D printer would have the resolution to print a check valve that doesn't leak.

    Leave a comment:


  • jdunmyer
    replied
    Regarding mineral buildup: I have very hard water that also has a bunch of iron in it. Every couple of months, I fill the Mr. Coffee with half-and-half vinegar and water, then run it through. Run 2 or 3 more cycles with just water to rinse it out, and I'm good to go for another 2 months or so. If I neglect it for a couple more months, it still operates, but is noticeably slower to brew a pot.

    Leave a comment:


  • DS_park
    replied
    For almost 3 decades I have ensured the other half can use her favorite type of coffee maker every day, a Melita / Gevalia BCM-4C.

    #1. As per post 5 above, vinegar. After soaking check valve overnight, reassemble, add a few cups of vinegar to the machine, let sit 30 min and turn the machine on to cycle it (vinegar) through. FUME ALERT, THIS WILL STINK! Cool and retry with water only. Usually fixes the spurting check valve thing.

    #1a note this should be done once a year or so to prevent scale build up.

    #2 Spare Machine. Find used identical model(s) at garage sales, goodwill, salvation army, or online.Clean test and have ready for stand by service.

    #2a Spare Parts. Breaking one down for parts is a type of recycling. Take a less promising unit from #2 and its a parts machine.

    In your case if the check ball is truly damaged, find any free coffee maker and rip apart for just the ball. Pretty sure many of them are about the same size.

    Good luck.
    DS_P

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  • JoeLee
    replied
    Originally posted by Paul Alciatore View Post
    Nothing unusual about that. The only thing that differs is your degree of subtlety, which usually is not very great.

    Another thing that came to my mind after reading the other responses is you obviously took it apart for cleaning. Could you have reassembled it with that valve assembly backwards? It may not work both ways.



    No, it's in there the right way. It's been working fine for a few weeks.

    JL.............

    Leave a comment:

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