Customweld
WKR
+1 on the boater safety class. Not knowing proper anchor techniques can get you in trouble faster than you can cut the anchor rope.I would highly reccomend reading through a boater education course or even find one online. Boats are great and I love having them, but it is a dangerous hobby. A litte education goes a long way.
An anchor of 20# will hold that boat. Using a rope to haul it up is all we have ever done. Use a shackle and couple feet of chain to attach the rope to your anchor as they wear don't low. Google anchor line length to learn more.
Keeping a trickle charger on is a good idea but not necessary.
My advice would be to keep everything as simple as possible. I've been boating for years and still stick to that. Best hobby ever.
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