Re: Home brew APO?

by OneBlueSummer Wed Mar 19, 2014 8:44 pm

what float switch do you use?
for some reason I can't wrap my mind around why you would need a check valve at the moment.. so why do you need one?

by gtech12v Wed Mar 19, 2014 9:41 pm

Check valve will prevent back flow to the tank and will keep the pump prime with water all the time

by ACpower1 Wed Mar 19, 2014 11:38 pm

without a check valve I would imagine the pump will have to fight the blower since the waste tank is under vacuum

by Fuzzsucker Sun Mar 23, 2014 12:51 pm

Alright do bad news. The $30 pump failed. Upon inspection I noticed no clogs or debris blocking the pump. When I took it apart I noticed the plastic fan had melted from the metal housing getting pushed down on it (I presume from vac pressure). So back to harbor freight for this little guy. I'll be trying again with a different pump soon. Hopefully one with a thicker metal housing that can handle the vac pressure. For the week it worked it was awesome.

by Freemind1 Sun Mar 23, 2014 1:03 pm

Why not electric trash pumps?

by gtech12v Sun Mar 23, 2014 10:07 pm

To reduce vacuum pressure adjust the water level to turn on and off at a higher level , my pump was triguering the circuit breaker due to vacuum resistance after adjusting the water level the problem was fix

by Cjcann Mon Mar 24, 2014 6:08 am

Sorry to hear the Harbor freight pump bought the farm. Did you buy the marine style or the regular? No problems with mine.

by Fuzzsucker Mon Mar 24, 2014 8:00 am

I'm considering trading in for another one. Perhaps this one was a fluke.it was the marine one.

I have it wired into the machine shut off float. So I got as much water in there as possible before it over fills

by francisco p Thu Mar 27, 2014 6:14 pm

fuzz you should consider my APO, it has never failed in the few years I have been using it, I even ran it dry a few times.

Home brew APO? - Page 2 _2014011

by Fuzzsucker Thu Mar 27, 2014 6:28 pm

I'm all ears. I can't see your photo very clearly tho. What apo is it?

by francisco p Thu Mar 27, 2014 9:15 pm

francisco p wrote:This is the one I'm been using for over five years with out a problem it cost you about $180 it will work with a blower up to 47 with no problem.
Were can I get one??
you can get it here http://store.waterpumpsupply.com/runo12vodcbi7.html
or any marine store

Fuzz here is my old post

by francisco p Thu Mar 27, 2014 9:23 pm

here is a bigger picture

Home brew APO? - Page 2 03240910

by francisco p Thu Mar 27, 2014 9:33 pm

here in the Specifications:

Rule Pumps 17A, Non-Automatic 3800 GPH fully submersible 12V DC bilge pump is designed for use as a washdown pump and/or to circulate water to livewell tank(s) on commercial or pleasure boats, easy clean snap lock strainer, silent and vibrationless operation, anti-airlock protection, compact, efficient long life motor, marine grade blocked wiring, ignition protection, no burn-out when run dry and rust and corrosion protection.

Specifications
Fuse Size: 25 amps Amp Draw @ 12 Volts: 15.5 Amp Draw @ 13.6 Volts: 20.0 Suction Opening: 1-1/2" Discharge Opening: 1-1/2" Suction & Discharge Finish : Barbed Housing Material: ABS Strainer Material: ABS Impeller Material: Nylon Shaft Material: Stainless Seal Material: Nitril/Teflon Temperature Limit: 200 F Fluid Capabilities: Bilge Water Typical Life: 2500 hours Wire Length: 29" Wire Gauge : 14 gauge Height: 5-1/4" Width: 8-1/2" Depth: 6-1/2" Weight: 5 lbs 10 oz Certifications: NMMA Type Accepted Equipment # 704180, IMCI Certified - ISO 8849, CE Certified, UPC Code 0-42237-08338-8

Capacity # 17A Non-Automatic Pump In Gallons Per Hour
Operating Voltage Head In Feet
0' 3.35' 6.7'
Gallons Per Hour
12 VDC 3192 2670 2157
13.6 VDC 3800 3185 2570

I use a 25 feet hose and it pulls out about 6 gals per minute

by Davey Cracker Thu Mar 27, 2014 9:59 pm

FP, is this your own homemade system??

by gtech12v Thu Mar 27, 2014 11:04 pm

francisco p wrote:fuzz you should consider my APO, it has never failed in the few years I have been using it, I even ran it dry a few times.

The picture shows a T and a check valve after the pump going to the top of the waste tank can you explain please

after the pump where you have the T there are 2 check valves one going to the tank and the other on the waste water hose please explain Thank you

by francisco p Fri Mar 28, 2014 10:23 pm

yes Dave that's what I have in my machine

by francisco p Fri Mar 28, 2014 10:37 pm

gtech12v

the T is because you can see one line go back to the waste tank and there is one check valve and the other one have another check valve to prevent the pump to fight against the vacuum and is use to drain the waste tank.

by Cjcann Sun Mar 30, 2014 5:03 am

If my harbor freight pump kicks it i'm going with Francisco's pump. Looks worth the extra money. Thanks Franciso!

by Fuzzsucker Sun Mar 30, 2014 6:52 am

What size fuse are u running that on?

by francisco p Sun Mar 30, 2014 9:45 pm

Fuzzsucker wrote:What size fuse are u running that on?

I use a 20 fuse

by gtech12v Mon Mar 31, 2014 12:34 pm

gtech12v wrote:
francisco p wrote:fuzz you should consider my APO, it has never failed in the few years I have been using it, I even ran it dry a few times.

The picture shows a T and a check valve after the pump going to the top of the waste tank can you explain please

after the pump where you have the T there are 2 check valves one going to the tank and the other on the waste water hose please explain Thank you

The reason I ask is because most of the pumps will have the check valve between the pump and the tank but if this works for you is fine

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