Shurflo pump lifespan??

[Clearview Lee]

It sounds like I've been throwing money away! On my 3rd pump in 3 years. Just ordered today. Gonna keep it as spare and try and solve whatever this problem is tonight. The pump still goes as such.

Just this...

[media]http://www.youtube.com/watch?v=PzR4dgLBemc[/media]

Sent from my iPhone using Tapatalk

 

[spruce]

Also...how the hell is one supposed to know how many miles driving is sufficient enough using a SCRelay??? Winds me up all this probability ballsack.

Sent from my iPhone using Tapatalk

As I've mentioned before I have a 110 amp h leisure battery on a split charge relay. Our pumps on the van draw around 4 to 4.5 amp an hour each.

If I manage a 6 hour day on my own and my pump actually works for 3 hours of that day actually on the glass then I can presume I have used 12+ amps from my battery. If my battery was fully charged the previous night, then at the end of the day I would estimate that I have approx 98 amps left in the battery.

On my way home I see that my alternator is charging the battery by about 6 amps. At that rate I would theoretically need to drive for 2 hours to replace the charge I had used that day. However if it only takes 15 minutes to get home, then I have only replenished the charge in the battery by 1.5 amp. If I drove back to the same area the following morning I would put a further 1.5 amps into the battery. So I took 12 amps but only replaced 3 amps.

I know its a lot more complicated than that as a discharged battery will accept a higher charge rate. As the charged battery gets 'fuller' then the rate it will accept a charge reduces. My battery when nearly fully charged on my intelligent battery charger will only accept about 0.5 amps from the alternator.

It was once stated in an Australian Motor Home magazine that it would take a journey of 750km to fully recharge a discharged (flat) leisure battery. I can vouch for that on a trip I did in my van to London. I started off with a 75% charged battery and it was fully charged by the time I got to London - a distance of 250 miles. It took that distance, around 5 hours driving time, to put back about 35 amps.

My van alternator will supply the leisure battery with exactly the same charge rate, whether its traveling down the motorway or idling at traffic lights. So taking it slowly saves fuel and gives your battery a longer charge, but the results aren't big numbers.

 

[spruce]

It sounds like I've been throwing money away! On my 3rd pump in 3 years. Just ordered today. Gonna keep it as spare and try and solve whatever this problem is tonight. The pump still goes as such.
Just this...

[media]http://www.youtube.com/watch?v=PzR4dgLBemc[/media]

Sent from my iPhone using Tapatalk

Video is private so I can't open it.

 

[Clearview Lee]

[media]http://www.youtube.com/watch?v=PzR4dgLBemc[/media]

Sent from my iPhone using Tapatalk

 

[Clearview Lee]

This one above should be for public viewing

Sent from my iPhone using Tapatalk

 

[Clearview Lee]

Finally!!!! The culprit....

- plastic manufacturing residue from inside the tank clogging up the in-tank filter!!! It came out like spawn.

Sent from my iPhone using Tapatalk

 

[Clearview Lee]

2 pumps later!! At least when this new pump goes, I have a spare! Honestly never even thought about the filter in the water tank itself!!

How often do you clean yours? Or change.??

Sent from my iPhone using Tapatalk

 

[Jimroot]

Vid above is still 'private' @Clearview Lee

 

[Clearview Lee]

Try again... [media]

[/media]

 

[Clearview Lee]

Finally sorted after months of ongoing problems.

 

[Jimroot]

That one worked :thumbsup:

Good it's sorted. I'm going to get a cheap pump off eBay for starters

 

[Clearview Lee]

As I've mentioned before I have a 110 amp h leisure battery on a split charge relay. Our pumps on the van draw around 4 to 4.5 amp an hour each.If I manage a 6 hour day on my own and my pump actually works for 3 hours of that day actually on the glass then I can presume I have used 12+ amps from my battery. If my battery was fully charged the previous night, then at the end of the day I would estimate that I have approx 98 amps left in the battery.

On my way home I see that my alternator is charging the battery by about 6 amps. At that rate I would theoretically need to drive for 2 hours to replace the charge I had used that day. However if it only takes 15 minutes to get home, then I have only replenished the charge in the battery by 1.5 amp. If I drove back to the same area the following morning I would put a further 1.5 amps into the battery. So I took 12 amps but only replaced 3 amps.

I know its a lot more complicated than that as a discharged battery will accept a higher charge rate. As the charged battery gets 'fuller' then the rate it will accept a charge reduces. My battery when nearly fully charged on my intelligent battery charger will only accept about 0.5 amps from the alternator.

It was once stated in an Australian Motor Home magazine that it would take a journey of 750km to fully recharge a discharged (flat) leisure battery. I can vouch for that on a trip I did in my van to London. I started off with a 75% charged battery and it was fully charged by the time I got to London - a distance of 250 miles. It took that distance, around 5 hours driving time, to put back about 35 amps.

My van alternator will supply the leisure battery with exactly the same charge rate, whether its traveling down the motorway or idling at traffic lights. So taking it slowly saves fuel and gives your battery a longer charge, but the results aren't big numbers.

Very informative. I wish I had a brain like yours!!

 

[spruce]

Very informative. I wish I had a brain like yours!! /emoticons/smile.png

And I wish I had a brain like Alex Gardiner who has forgotten stuff I still have to learn. I also wish I had the designing aptitude of Steven Jones who is able to look at a problem, find and then manufacture a simple solution. My brain doesn't work that way.

You are just starting off in same same way as we all did at some point. When I first started wfp 10 years ago I hadn't a clue. There wasn't much info out there either. So much of where we are today has been through trial and error, not only on my part but others as well. So we have benefited from them sharing their successes as well as failures.

What you are finding out now will be added to your experience - you can't buy experience. I like to ask why a certain thing is happening and try to understand it.

 

[Clearview Lee]

Great. Thanks Spruce. I need to be a bit more patient, I think. I think I've now finally gotten a grasp on how the battery needs to be treated. Thanks for all your help.

Sent from my iPhone using Tapatalk