Backyard Aquaponics
A place to discuss aquaponics

i don't know i've this is allready something you all allready know but i came to a online shop (dutch) where the sell a waterpump witch can be connect to a car batery..

i hop ei did a good job on the translating part..

Technische spec.
position in use.: horizontal

Max. lifting hight 1,17 m
Max. water 0,75 l/min
Max. juse 200 mA
Afm. (b x h x d) 44 x 44 x 22 mm
coller Zwart
weight 43 g
supply 10,8 - 13,2 V
pressure connection 7,6 mm
suction connection 7,6 mm
juse: Continu

ooh i made a mistake..
it is 0,75 ltpm it thought it was 75 ltpm.....

Go to any of your marine shops that sell to fishermen or yachties, they will have a selection of 12v pumps to choose from.

True... but most 12v bilge pumps aren't designed for continuous use....

And almost everyone that has used them has found they only last a month or two...

But as a back up system just to keep the water in the FT going?

If you have it just as a backup (and probably testing it every once in a while) it should be fine, just not running 24/7/365.

My 12 volt pump is going on 5 months running continous and it is doing fine. Now it is not a cheap bilge pump, it is rated fro continous use.

Do you have a link for it Helomech ?

Sure do, not sure how long the motor will last , but the pump itself is very well built and will last a long time. Been running non stop since the day I got it and it pumps a lot of water.

http://store.waterpumpsupply.com/mppufrse316s8.html

Not your run of the mill 12v bilge pump, be interesting to see how long it does last. What head are you pumping at?

Head is about 7 to 8 feet. Getting about 400 gallons per hour at that height. Only thing I don't like about it, is that it is not self priming. So if it is shut down it takes a little to get it primed. Usually just opening the dump valve and putting my finger over the end. And using my finger to build pressure and let air out.

how many months is your pump in runnig mode now?

Just looked up the date I got it in and it has been running about 4 months. i thought it was 5 months, but I was wrong. I seems very well built.

that is a nice pump then!!!

it comes close to what i a looking for...
now need to find one here in the netherlands....

I just wish it had a brushless motor instead of brushed. When this motor fails I will be hooking the pump up to a brushless motor.