Small watermaker 3 gph

[sailorxyz]

Originally Posted by Opie91

Do not get too hung up on the .105 cam. I thought that is what I had but they sent a .075 and it got the job done and the motor ran pretty cool. Going to experiment with some larger ones but they say a .105 is too big.

So the cams can be swapped out for different profiles?

[Opie91]

Yes, you can change the cams out no problem and experiment. Pumptec will sell them to you.

Around $20 plus shipping.

The flow difference between a .075 and .085 at 800psi is right around 2 gph more which should result in an expect product water of 4.3 gph.

All in all it is working out OK and is fine for this boat. Just local cruising and I don't like fetching water. Do not think this would be a great fit for a full time cruiser. Probably would order something like the 40GPH SeawaterPro system.

[sailorxyz]

Originally Posted by Opie91

Yes, you can change the cams out no problem and experiment. Pumptec will sell them to you.

Around $20 plus shipping.

That is good to know. I hope you report back on your findings.



I joined with Brenda on her initial Pumptec order so hopefully will have a pump in a month or so to play with.

[Pizzazz]

Originally Posted by Opie91

Curious why you no longer recommend the 14" membrane?

Put together a 14" membrane with a 107SS (new version of the 116C). Ended up getting 3.4-3.6 GPH at 130 TDS. 800 PSI. Have run about 25 gallons through it so far and the flow has remained fairly constant and TDS has continued to go down as time goes on.

This is great performance. Based on the chart for 107SS, you should be drawing around 10A or less than 3AHr per gallon, which is fantastic. My only reason for recommending larger membranes is that they are more popular and cheaper than the smaller membranes. They will produce more water and will need to be replaced just as often but at a lower cost.

Another idea (also mentioned a while ago) is to have a second pump for even greater output and redundancy. These pumps are so cheap that you can build an inexpensive device that is fully fault proof (two motors, two pumps, two membranes) for less than $1,500.

[Seafever17]

I’ve built one and get 10 lph when running it on 12 volts. The 116c has 3 inlets and outlets and you blank the ones you don’t use. I run my Karcher k2 thru one of the pressure OUTLETS back into the pumptec 116c and from there it goes out the preconnected 12 volt side and into the membrane. . When running on the K2 I get 38 litres per hour. This is about a $150 Aud upgrade that gives an awesome boost to production when motoring or AC power is available. The k2 side has an isolation valve for when running on DC. Running this way ( using a pressure side outlet as an inlet) works great. I send prefiltered water to the suction of the k2 on the transom and the k2 hose in to the shower where the watermaker sits on a shelf silently making water. So…. Making one of these dual function/ dual voltage is definitely the go!

[OneTwoSail]

That sounds brilliant Seafever17! Great to know you can adapt it to be karcher powered to get large volume if needed. Do you have some pictures or a video of it running? What's the noise level like when running the 116c, and when running the K2?

[Opie91]

Originally Posted by Seafever17

I’ve built one and get 10 lph when running it on 12 volts. The 116c has 3 inlets and outlets and you blank the ones you don’t use. I run my Karcher k2 thru one of the pressure OUTLETS back into the pumptec 116c and from there it goes out the preconnected 12 volt side and into the membrane. . When running on the K2 I get 38 litres per hour. This is about a $150 Aud upgrade that gives an awesome boost to production when motoring or AC power is available. The k2 side has an isolation valve for when running on DC. Running this way ( using a pressure side outlet as an inlet) works great. I send prefiltered water to the suction of the k2 on the transom and the k2 hose in to the shower where the watermaker sits on a shelf silently making water. So…. Making one of these dual function/ dual voltage is definitely the go!

Definitely curious.



How many watts does that Karcher draw? The spec shows 1500, that is a lot.

[Celestialsailor]

Following...

[Schooner Chandlery]

Hi folks! Just a little reminder that Schooner Chandlery has been getting the great Pumptec pumps and sending out to the Cruisers Forum members. If you want to order a pump with 2022 pricing please direct message me here tonight or order it at the link below. Prices will be about $30 more in 2023. Thanks! Direct link to the 2022 product is also here so you can buy directly. Note you will pay actual shipping ($30-$40 USA but more than $100 and sometimes $150-$170 internationally) and you will get a discount on our advertised sale price so that's an additional $50 or so off what you see on the site. Just mention your Cruisers Forum call sign here or message me so I can make sure and get you that discount.

Here is that product link. https://schoonerchandlery.com/shop/t...end-2022-pump/

Kind regards.

[Opie91]

Originally Posted by Schooner Chandlery

Hi folks! Just a little reminder that Schooner Chandlery has been getting the great Pumptec pumps and sending out to the Cruisers Forum members. If you want to order a pump with 2022 pricing please direct message me here tonight or order it at the link below. Prices will be about $30 more in 2023. Thanks! Direct link to the 2022 product is also here so you can buy directly. Note you will pay actual shipping ($30-$40 USA but more than $100 and sometimes $150-$170 internationally) and you will get a discount on our advertised sale price so that's an additional $50 or so off what you see on the site. Just mention your Cruisers Forum call sign here or message me so I can make sure and get you that discount.

Here is that product link. https://schoonerchandlery.com/shop/t...end-2022-pump/

Kind regards.

Did you end up getting the .105 cams for this pump?

When I asked for the .105 Pumptec did not want to sell them with a cam that large due to the possibility of the motor overheating.

That is a pretty good price on your website, is that $50 off of that?

Thanks and Happy New Year All!

[ScottieD]

Thanks to Pizzaz and everyone who has contributed here. I’m a new full-time cruiser and have a 3gph version running. I’m currently at the north end of Lake Worth Florida if anyone would like to see/hear one operate.

[OldManMirage]

Originally Posted by ScottieD

Thanks to Pizzaz and everyone who has contributed here. I’m a new full-time cruiser and have a 3gph version running. I’m currently at the north end of Lake Worth Florida if anyone would like to see/hear one operate.

You should post a couple of pictures of your installation. I'm sure we would all be interested to see what you did. What kind of output are you getting ? What kind of power usage ? We need details man !

[ScottieD]

The details. It makes about 3gph while drawing 14.5 amps on batteries+solar. Batteries currently reading 12.67v while it is making water in full sun at about 1300edt.

My installation is a non-installation. It’s portable. Sort of (see pics). To get it in/out of the aft cockpit locker the water maker itself comes out of my cheesy box and the box had to be cut in half and reassembled in the locker. I went with the 14” membrane to keep it small.

To use: open the locker lid, run the intake hose over the side with a dive weight to hold it down and put the brine discharge over the other side.

I’ve had difficult keeping air bubbles out of the system and you can see from the pics the pre filter is “upside down” which seems to have solved the problem. I do not have a feed pump.

The sound is not bad at all. Noticeable in the cabin but normal conversation is no problem. A little louder in the cockpit.

Total cost was around USD1500



Scott

Forgot to include TDS is about 250ppm

[Schooner Chandlery]

Scott I like your system install that is not an install, lol. Good idea. Interesting on the air bubbles but we have also had similar on a different water system and filter so the upside down installation is a good pointer to fix that.

[Schooner Chandlery]

All, I've come to post a link for the Pumptec parts we can get for you at this time. Note the price links are suggested retail prices. Do a product enquiry on the site to get a coupon code for a minimum 20% discount on the parts kits. Note -- the cams are available and there are additional cams for slightly different sizes should you want to play around with those.
https://schoonerchandlery.com/shop/t...7ss-pump-parts

We can get others but at this time the parts we've listed are the following:

Part 10034 is KIT-A, CERAMIC PLUNGER & BUNA SEALS, for 107SS/113C/116C
Part 10004 is KIT-B, VALVE & SEALS, for pumps 107SS/112T/112V/113C/116C/212T/217V/348U/350U/356U/360U,
Part 10064 is KIT-C, 100 SERIES, .085 CAM, 5/16 THREAD, .354 THICK
Part 10068 is KIT-C, 100 SERIES, .105 CAM, 5/16 THREAD, .354 THICK
Part M925 is MDI, 1/7HP, 12V, 13.5A, GREY/SILVER, 100 SERIES
Part 60121 is (N-S) 107SS PUMP ONLY, BUNA, M-VALVE, 4 – 1/4″ PORTS, CP
Part 40241 is KIT, BASE FOR 112/113/114/107 PUMPS

We will optimze the coupon codes to get the lowest prices available to you. At this time as we are new with the parts supply, we are discounting just at the 20% off MSRP to make sure we do cover costs.