Ive been running my blue bowl with out a fuse for about fifteen years.... never have I had a burnout .
Whats a bilge like 4 amps drawn?
Battery charger to battery... leads from bilge to clips negative stays attached positive is my on/off lead
wires never get hot same pump for years.
I realize bigger pumps draw more but?
if its running and pumping what it should I wouldn't thing the pump was broken.
My battery charger is the type that wont turn on unless it is hooked to a battery.
Though I can trick it after it starts and leave the positive leads connected.. detach from the positve side of the battery running positive lead from charger to pump and it will keep running.
your fuse should be no more than 150 % of amp draw.
If your not supplying the pump with enough voltage your amp draw will increase.
any loose or corroded connections will do the same. 16 g wire can handle 15 amps your pump isn't pulling that.
Try this disconnect the water supply from the equipment.
Run the pump in the tub with it basically pumping at zero head.
if you don't blow a fuse its a clue that your trying to get the pump to pump more than it can... the resistance is increasing the draw.. and your fuses are blowing.
I’ll try to answer all in order lol.
Yea my black magic table is running without a fuse. Goes to a battery charger. 2 amp draw.
This pump for the highbanker is 12 amps draw. (I don’t have a charger rated that high, using a kenwood KPS-15 power supply 13.6 voltage out max amps out 25 peak or 23 constant ability)
Few inches of wire around the neg fuse were pretty hot at time of fuse blowing.
Wire from the pump factory installed maybe 14 or 16 gauge.
My wire from power supply to fuse point 12 gauge, crimped barrel connections.
Taped for moisture resistance. Solid connections.
Fused used 15 amp large wedge fuses.
I’ll have to try the 0 head test, will have to run a deeper tub.
I’ll also measure out the current length of the power leads and discharge hose.
I don’t think they are that long on both cases to where it should be a issue.
I’ll post up the measurements.
It was great flow for the 2 min it ran lol!