I have a 12 Volt Pump
https://23bsolutions.com/product/everflo-ef5500-12v-diaphragm-pump-4-1-bar-20-8-lpm/
Connected to a Victron SmartSolar Mppt Solar Charge Controller 75/15
https://cosycampers.ie/victron-smartsolar-mppt-75-15-scc075015060r.html
My set up is 175 watt Solar Panel > MPPT > 12 VOLT Leisure Battery > MPPT > PUMP
When the pump is connected directly to the battery is works perfectly. But when it is connected like Battery > MPPT > Pump it doesn't work or is very week
BTW Connections are good and tight and I'm using 6mm cable
Do I just connect the pump straight to the battery?