Running Shurflo continuous?

[RileySugarbush]

Thanks for everyones input. Does anyone run their Shurflo from a regular power source continously? That is how next years setup will be.

What do you define as a regular power source?

[mol1jb]

I mean a non-battery power source.

[Super Sapper]

I have run three 2088 12 volt pumps for 3 years with no problems. I use a temp. controller so that they shut off after a freeze and turn on when it warms up. I run deep cycle batteries and change them out every other day. The 12 volt pumps are supposed to outlast the 110 volt version.

[RileySugarbush]

I ran a 110v this year for many days at a time. Not continuously for weeks but lots of hours. The brushes wore down and the motor started running erratically and then would not start. I fiddled with the brushes and got a little more life out of them. I don't recommend it. Next year I will have a twelve volt pump running on an extension cord, but with a battery charger and a small garden tractor battery continuously connected. The charger will provide the 12v power and the battery will even out the power. Others here have used a similar scheme with good results.

[mol1jb]

I ran a 110v this year for many days at a time. Not continuously for weeks but lots of hours. The brushes wore down and the motor started running erratically and then would not start. I fiddled with the brushes and got a little more life out of them. I don't recommend it. Next year I will have a twelve volt pump running on an extension cord, but with a battery charger and a small garden tractor battery continuously connected. The charger will provide the 12v power and the battery will even out the power. Others here have used a similar scheme with good results.

So you ran the 110v version of the pump? I have seen it and wondered how it would work out. Do you know of anyone who has tried the 12v on a power cord adapter? I have heard of one person doing this with an old cable box power cord.

[mol1jb]

I have run three 2088 12 volt pumps for 3 years with no problems. I use a temp. controller so that they shut off after a freeze and turn on when it warms up. I run deep cycle batteries and change them out every other day. The 12 volt pumps are supposed to outlast the 110 volt version.

Good information. I will keep that in mind.

[RileySugarbush]

So you ran the 110v version of the pump? I have seen it and wondered how it would work out. Do you know of anyone who has tried the 12v on a power cord adapter? I have heard of one person doing this with an old cable box power cord.

The 12V pump spec sheet calls for 7.5 Amps max, so not just any 12V power adapter will work. I will try using a 10A battery charger unless I run a test and see that the real average power is much less.

[mol1jb]

The 12V pump spec sheet calls for 7.5 Amps max, so not just any 12V power adapter will work. I will try using a 10A battery charger unless I run a test and see that the real average power is much less.

Definitely. Would something like this work? https://www.freshwatersystems.com/p-...FRc9gQodbWgHSg

[RileySugarbush]

Definitely. Would something like this work? https://www.freshwatersystems.com/p-...FRc9gQodbWgHSg

If that works it indicates that the average current draw for a 24VDC Shurflo is 2.5 Amps or less, so a 12VDC would supposedly draw about 5 Amps. A 24V pump and that transformer seems like a good combination.

The fact that the 120VAC version has a reputation for not holding up, and my experience of having the brushes fail early suggests that the rectifier in the AC version or the resulting higher internal DC voltage is tough on the brushes. I wonder if the 24V is more robust than the 12? Has anybody got experience with them?

[Biz]

I have used several Shurflo 4008 12 volt pumps and my controller displays the pump current draw. I rarely see anything over 2 amps on the sap lines, under any pumping conditions. Often it is between 1.0 and 1.25 amps. The rating stamped on the pump is 7.5 amps but I haven't seen it come anywhere close to that.

Dave