I was thinking of getting the Groco or this Johnson pump. I heard it's pretty good and it's half the price of the Groco. Still trying to get some feedback on it before I buy though. I'd rather spend the money once and do it right.
In reference to the leaks- my washdown hose was loose from the factory, an easy fix, but required some contortion. This year, the hose split just behind the hose clamp on the fitting that enters the pump. I also had this splitting problem on the freshwater washdown hose. I'm not sure of the cause, but it happened both times right at the fitting. Neither was a gusher, they both sprayed under pressure. So, check those fittings and hoses for splits.
I'm having a thru-hull & seacock installed this week. I am going to use one thru-hull for both the livewell and washdown. I plan on using a Rule dual port livewell pump mounted directly to the seacock. It looks like the thru-hull port on the Rule pump is 3/4".
#1 = Would a single 3/4" thru-hull supply enough water for my livewell (700 GPH) and my Groco washdown?
#2 - The secondary port off the Rule pump is 1/2". Would this be enough to supply 6.5GPM for the Groco washdown?
I have a setup on the transom too, and I noticed recently I had a leak on the discharge side of the pump. I don't use the pump much.
The original hose wasn't cut straight so I tried a week ago to pull it off and recut it. Didn't help as I put a nick in the plastic barb on the outside (a small one but enough to channel). Mine is accessed through a transom door.
I’m ready to order a seacock and thru-hull for my washdown/livewell project. I’m going with 3/4”. Groco makes some nice stuff, but they have 2 different seacocks, one is triple the price. It looks like it’s just more heavy duty. Does anyone know the difference between the two? The first one is $30, the second is $100.
Or do you use a standard mushroom thru-hull with a separate strainer? This way would seem safer because if you struck something, the strainer would break off but the thru-hull would remain intact (hopefully).
My '92 install uses that std scoop to thru-hull that was mated to what appears to be that $30 seacock. I pulled it completely apart in 2002 ... cleaned and regreased, then re-installed ... but all was well from the original installation.
Same scoop here too. It will force water through the seacock and out the hose at a pretty good clip. I once forgot to reconnect the hoses to the pump after rinsing once and filled the bilge on the next trip! "Hey, why's the bilge pump running?" :shock: AAAAH! A good rinsing of the bilge with seawater took place. I like the scoop. It will ride over a trailer roller, deflect any trash, and seems to be fairly robust. Rinse the pump with fresh water every chance you get, just hold a hose up to the scoop and have someone run the pump for a couple of minutes.
Be sure to winterize the pump and lines before the first freeze. Use the raw water to simulate fish feeding on the surface. Sometimes it fools 'em.
Just a slight chill passed through me this time when I saw the red light on next to the bilge switch. Once I was 75 miles offshore in a 23 Mako when I noticed the bilge pump running -- a six foot crack had opened in the hull below the water line, a stringer had given up the ghost -- water was creeping up the floor from the stern -- We ran wide open with the plug removed; I learned how to bail efficiently that day -- but that's another story....