In addition to this design flaw, during the early years of my love affair with s/v Rainy Days (there's no other way to describe it!) I noticed that the deck drains would regularly become blocked. Most of the time it was due to a collection of (helicopter) seeds from nearby maple trees--these seeds were just the right size to block a 1/2-inch deck drain.
|The two 1-1/4-inch hoses from the deck drains on each side of the boat join at a |
1-1/2-inch bronze tee and discharge through a 1-1/2-inch thru hull that is above
the waterline. This is located aft of the propane storage locker.
The four deck drains are connected with increasingly larger hoses as the drained
water moves aft and the ultimately drain through a 1-1/2-inch thru hull in the stern