Sump pump on 330

Squid1962

Well-Known Member
Joined
Jan 5, 2021
Messages
160
Reaction score
24
Points
18
Location
South Coast MA
Model
Express 330
Any suggestions on changing out sump pump on 330? It appears float switch is not working.
 

MA208

Well-Known Member
Joined
Mar 13, 2011
Messages
195
Reaction score
20
Points
18
Any suggestions on changing out sump pump on 330? It appears float switch is not working.
Shower sump? Should be easy to get to. My. Marlin has a Rule A Matic. If yours is the same the base is generally interchangeable and can stay. Just put a new float switch on.
 

loubeer

GreatGrady Captain
Joined
Sep 6, 2017
Messages
202
Reaction score
75
Points
28
Location
Newport Beach, CA
Model
Express 330
Easy - it's located in the front section of the below-deck cabin compartment where your thru-hull valves for your wash-down, bait pump and head discharge are located.
 
Joined
Sep 26, 2019
Messages
12
Reaction score
1
Points
3
Age
67
Model
Express 330
What year is your 330? I had to replace the sump pump on my 2016 330 and while the box is easy to get to the pump change was complicated by the fact that the old pump was discontinued and the replacement required a higher amperage breaker in the panel. If it is only the float switch however you are in luck as that can easily be swapped out although I think they may have also changed the design of the sump box at some point as well since 2016. I recall I improved the ac drain as long as I had the box out as it did not drain well and also serves as the pump out for your ac condensate.