Leaving the avon SR4 out all season

[MrVolante]

Hi all.
New norwegian member with a tough question:
I am considering this SR4 FINN Båt, but i have the following dilemma:

I would have to leave it on it own on the sea for exended periods (3 weeks+).
I live in an area where it rains fairly much.
My concern is that the boat will flood/ sink.

The boat has a bilge pump connected to a separate battery, but i fear it will drain the batt during extended periods.
The engine weight and construciton leaves the trunk hole fairly deep in the water, and leaving the trunk down would mean the boat is constantly flooded fairly high (?).

So if i trust the bilge pump it might fail and there is no exit for the water. if i leave trunk open its always flooded.

I could cover it, but winds will probalby tear of the cover.

So, those of you with SR4s or similiar, what have you done to prevent flooding when the boat is moored? Do you drill additional higher holes for safety (maybe with one-way valves)? Have anyone tried the Drainman pump? Drainman Bilge Pump - Unimer Marine

Any help is really apprechiated, or i end up with a "sensible" alternative (pioner 13..)

[Tim in Yorkshire]

I put a cover on mine when I leave it moored, jkeeps a fair bit of the water off. Luckily it's on a drying mooring, so tips to one side when the tide is out, emptying some of the water that pools on the cover.

[Locozodiac]

Install a thick cover with a wooden, metal stand in middle boat as to form a tentlike. Cover must be long enough to cover whole bow and rear of boat and wide enough to pass port & starbord sides for rain to slide directly to sea. Secure with 4 side ropes for wind not to blow cover.

Happy Boating