WD40
New Member
I'm installing a new 2 wire 2HP 230V submersible pump in a lake for lawn irrigation, replacing an old above ground unit. Total run from the breaker panel to the pump is 420ft (200' breaker to shore and 220' shore to pump) pump mfg wire chart shown 10 awg is good to 411'. pump draw is 10 amps. there will be no control box, but some type of a junction box near the shore. I plan to run conduit from breaker box to shore junction, and thinking about conduit to pump just for wire protection not waterproofing, concerned about fishing lures snagging the wire. I dont know anything about the flat wire I've seen on the internet, So am I safe with all 10 awg? or 8 awg from breaker to junction box and 10 to pump? Would appreciate your thoughts. Thanks