Waterproof stackpack

[tyce]

My newish stackpack lets all the rainwater drip through the zip and sit in the mainsail slowly producing lots of nast black stains on my lovely shiny white sails.
Is this common to all stackpacks or is mine rubbish.

 

[macd]

No, it's gravity that's rubbish. If it worked the other way, you'd be fine. Where would you expect them to put the opening to enclose something falling from above?

 

[neilf39]

Mine isn't waterproof either but the bottom 20% is actually a mesh each side of the boom so water flows out and air flows in. I have had it nearly 5 years and the sail has not suffered from mould. If it was waterproof and you put away a wet sail, then it would get horrible.

Main use I thought was to keep the UV and dirt off apart from helping to catch the sail when lowering.

 

[Wunja]

I've been reading up on stack pack designs in preparation for making my own. The best advise seems to be to have the zip at one side, allowing the water to either sit below the zip of run off the back.

 

[northwind]

My newish stackpack lets all the rainwater drip through the zip and sit in the mainsail slowly producing lots of nast black stains on my lovely shiny white sails.
Is this common to all stackpacks or is mine rubbish.

Change the angle of your boom, so the water can run off.

Stackpacks are more intended to protect the sail from UV, than keep it dry.

D

 

[prv]

Sail more often

My sail often collects a bit of water, but it doesn't stay there for long enough for nasty stuff to grow in it.

Pete

 

[RobbieH]

Yes

My newish stackpack lets all the rainwater drip through the zip and sit in the mainsail slowly producing lots of nast black stains on my lovely shiny white sails.
Is this common to all stackpacks or is mine rubbish.

Your stackpack is rubbish. I had a rubbish stackpack so I gave it to an impoverished neighbour (explaining why it was rubbish) and had a new one built without the design faults.

 

[Halo]

Mine collects gallons in the mainsail folds even if I angle the boom . When I hoist I usually need oilies. Will work out a better technique for stowing over the winter. Has anyone solved this problem by ingenious sail folding?

 

[Daydream believer]

Perhaps wAter is getting through the zip because it s collecting over the zip.
There may be a dip in the 2 parts either side of the zip
If you slackened the lazy jacks you might stop water collecting in the first place.
Alternatively have some tags fitted that can fit to the lazyjacks so it lifts the zip a bit
If the cloth is porous a wash in a waterproofer over the winter may help

 

[GrahamM376]

Mine has a cover over the zip, sewn on one side and velcro on the other, mainly to stop the zip degrading with UV. Sailcover not made from waterproof material though so any water will evaporate through it. Waterproof not good.

 

[rudolph_hart]

Mine has a cover over the zip, sewn on one side and velcro on the other, mainly to stop the zip degrading with UV. Sailcover not made from waterproof material though so any water will evaporate through it. Waterproof not good.

+1, but stackapack is made of waterproof material, but the underneath area has long mesh panels for airflow.