Running Shurflo continuous?

[mol1jb]

Hey all,

Just wondering who out there runs Shurflo pumps continuously through the season or days at a time? My 2018 setup will be such were I will able to run a diaphragm pump inside with out danger of freezing and was hoping that a Shurflo could do this. It will be a hybrid 3/16 setup with good natural vac from the hill sides but I would like to supplement with a small pump to help the trees at the bottom of my 3/16 runs achieve good vac as well.

Thanks,
Jacob

[RIVERWINDS]

I've ran a 4048 for 17 days straight, no issues. I shut it down during long periods of freeze otherwise it's on day and night for the entire season.

[Wanabe1972]

I only shut off if there was going to be a day or two below freezing and brought them in if going in the teens for highs. 3 seasons with no problems.

[mol1jb]

I only shut off if there was going to be a day or two below freezing and brought them in if going in the teens for highs. 3 seasons with no problems.

What model do you use?

Thanks both for the info

[danielschauder]

I run a shurflo 4088. Ran it all season only shutting down when it would freeze. Run a recirculating line to keep the diaphragm wet and it will pull all season long.

[motowbrowne]

I ran two 2088s all season. Shut them off for a week of very cold weather. Otherwise they ran 24/7.

[Biz]

For those who run them continuous, how do you power them? AC or battery?

Dave

[RileySugarbush]

I burned out an AC version this year. It is still a DC motor, with a an internal rectifier. I would use a 12V model on a battery charger and a battery to smooth out the charger current if you you have AC available. That is my plan for next year.

[motowbrowne]

I burned out an AC version this year. It is still a DC motor, with a an internal rectifier. I would use a 12V model on a battery charger and a battery to smooth out the charger current if you you have AC available. That is my plan for next year.

That's what I did. Worked very well for me.

[mol1jb]

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

[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-6528-shurflo-power-supplytransformer-100-240vac-25-amp.aspx?gdffi=ff5c75bf59634981b5f1d9c11393bf6b&gdfms=194C6A9FE4524E8A8FBFF175D7D3617E&gclid=CMfUvdGYsdMCFRc9gQodbWgHSg

[RileySugarbush]

Definitely. Would something like this work? https://www.freshwatersystems.com/p-6528-shurflo-power-supplytransformer-100-240vac-25-amp.aspx?gdffi=ff5c75bf59634981b5f1d9c11393bf6b&gdfms=194C6A9FE4524E8A8FBFF175D7D3617E&gclid=CMfUvdGYsdMCFRc9gQodbWgHSg

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

[RileySugarbush]

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

That's good to know. Thanks for the info!

[mol1jb]

So when looking at 12v dc power adapters do I need to look for those with amperage over 7.5 or under 7.5?

[RileySugarbush]

The freshwater systems one looks good. Based on info from Biz, anything with at least 4A at 12V should do it.

[mol1jb]

How does the the power wires from Shurflo look? Are they just bare ends?

[RileySugarbush]

The wires on the 110VAC version were just stripped pigtails, no connector

[motowbrowne]

How does the the power wires from Shurflo look? Are they just bare ends?

Yep, just bare ends on the 2088.

[mol1jb]

Good to know. If that is the case then I may be looking at an adapter like this one that can accept bare wires easily.

https://www.radioshack.com/products/radioshack-13-8vdc-19a-power-supply

It is probably a bit overkill on the supply side but if it works it would be an easy way to get the 12v shurflo to 110.

[gmc8757]

Good to know. If that is the case then I may be looking at an adapter like this one that can accept bare wires easily.

https://www.radioshack.com/products/radioshack-13-8vdc-19a-power-supply

It is probably a bit overkill on the supply side but if it works it would be an easy way to get the 12v shurflo to 110.

I've been using an old computer power supply to power my 12v pumps. Cut and connect the green wire to one of the black wires. This will allow the power supply to stay powered on once the power supply is plugged into 110. Use yellow and black wires to supply the 12 volts to the pump. Works well, 12v w more than enough amps.


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[Dale Sparrow]

LED 12v power supplies on ebay are half the money. I use a the 30 amp model.

[Dale Sparrow]

So when looking at 12v dc power adapters do I need to look for those with amperage over 7.5 or under 7.5? You should have a power supply with 3x motor's rated amps. 25 amps should be plenty for a 7.5 amp motor. When a motor begins to spin it draws many times it's rated amps just for a split second if you don't have a large enough power supply it may just keep popping the breaker.

[mol1jb]

LED 12v power supplies on ebay are half the money. I use a the 30 amp model.

Good info, thanks Dale

[scottshawley]

Can someone post a picture of how you set up your recirculating loop? Thanks


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