Regarding peristaltic pumps

[Bloodasp]

The motors I would guess need to be replaced.

[nlreefguy]

Oh really? So they just burn out after a while, eh? Not a great long term investment then, really.

[hillegom]

I would email the co. and ask them.
Here is the presidents email
stanf@reefdosingpumps.com

[nlreefguy]

Yes, I tried that, I am just waiting for a response. But thanks for the suggestion.

[hillegom]

Well, you could try to oil the gears inside. That is assuming the electrical motor is ok

http://reefdosingpumps.com/Pages/gears.html

[nlreefguy]

OK, I'll try that. What kind of oil or grease do you think would be acceptable for this purpose?

[mark]

have they been in use for 5 years or just 5 yrs old?

[hillegom]

Originally Posted by nlreefguy

OK, I'll try that. What kind of oil or grease do you think would be acceptable for this purpose?

I would first take it apart and see if the gears are binding when they turn. Are the bearings, where the shaft for the gears are in, are they loose?
If everything seems ok, then clean off the old grease and use something like that white grease, lubriplate i believe. It turns so slow almost any grease would work. ie, better than no grease at all.
But, the brushes on the electric motors could be shot too. Or the bearings on the motor. Does it dose every day? for 5 years?
So hard to say, long distance and all