My anchor box on the bow of my boat is clogged and will not drain the water that is in it. I stuck my finger in the drain hole but didnt feel anything causing the clog. Does anyone have a suggestion on how to drain the box? Could I use draino or something like that or would that hurt the drain hose? Thanks for the help!
I had the same problem. I bought some small diameter polypropylene tubing, fed it into to the drain hole and forced water through it from the garden hose. It took a while but the clog was finally flushed out. Now it drains OK.
You can use 500lb mono or weed eater line also … if you don’t have a nylon/mono fish tape.
Use the heavy mono along with jet nozzle on the water hose.
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Luke 8:22-25
Thanks guys, I got it to start draining. Its slow but draining. I need to work on it some more. Thanks for the help!
Lowe’s sells a “mini-pipe snake” in the plumbing department. Run that sucker down in there and it should open up quickly. If you want added “help” then hook it up to a cordless drill and go slowly at it. 
‘05 Wellcraft 232 Coastal rockin’ a Yammie F225
‘00 Aqua Force Flats 15 w/ Yammie F25
"Kiss my ass, I bought a boat; I’m goin’ out to sea." (Jimmy Buffett covering Lovett)
I’d be gentle. If you separate a joint in the drain plumbing, the problem get a little more complicated.
17’ Henry O Hornet
26’ Palmer Scott
a garden hose spraying backwards into the drain should blow what ever is in there out
26’ Twinvee Cat
Twin Suzuki 175’s
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I fixed the problem. After I finally got the water drained out I got a small shop vac and sucked up what ever was clogging the line. It drains great now. Thanks for all the help