Rain Catcher? Anyone? - SailNet Community

   Search Sailnet:

 forums  store  


Quick Menu
Forums           
Articles          
Galleries        
Boat Reviews  
Classifieds     
Search SailNet 
Boat Search (new)

Shop the
SailNet Store
Anchor Locker
Boatbuilding & Repair
Charts
Clothing
Electrical
Electronics
Engine
Hatches and Portlights
Interior And Galley
Maintenance
Marine Electronics
Navigation
Other Items
Plumbing and Pumps
Rigging
Safety
Sailing Hardware
Trailer & Watersports
Clearance Items

Advertise Here






Go Back   SailNet Community > Out There > Cruising & Liveaboard Forum > Living Aboard
 Not a Member? 


Reply
 
LinkBack Thread Tools
  #1  
Old 07-28-2008
Every day, Something new
 
Join Date: Jun 2007
Location: Cruising
Posts: 60
Thanks: 5
Thanked 0 Times in 0 Posts
Rep Power: 8
marinegirl405 is on a distinguished road
Rain Catcher? Anyone?

We live aboard, and even cruising in the USA from time to time have trouble coordinating filling our water tanks. We are planning on cruising further afield and on the list is "Make a water catcher". I'm currently thinking as large a bit of material as I can manage, with one or two (close-able) drain pipes and a hose attachment to run from the rain catcher to the water fill, possibly via a filter.

I've never seen a water catcher on any boat, so I'm looking for tips on what works and what doesn't so I don't have to make the same mistakes.

Despite an internet search I can't find anything.

What material? What shape to sew works best to catch/hold water? etc - anything really. Any support / stiffening structure required? All tips / comments appreciated.

I'm also undecided if to use the area at the back of the boat (but near the water tank fills) or the larger area at the front of the boat to rig the water catcher when needed.
Reply With Quote Share with Facebook
  #2  
Old 07-28-2008
sailingdog's Avatar
Telstar 28
 
Join Date: Mar 2006
Location: New England
Posts: 43,291
Thanks: 0
Thanked 9 Times in 9 Posts
Rep Power: 13
sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice
There are quite a few different ways to make a "water catcher". Several links from this google search might be of interest to you. Ones that use boom tents or awnings seem to be the most popular.

A few pointers from using rain water collectors on OPBs...

First, make sure you have a way to divert the water, since the first few minutes will be cleaning the dirt/dust/grime off the water collection surface and isn't really suitable for putting into your tanks.

Second, make sure you've got a separate tank for collected water. That way, if the collected water gets contaminated, you haven't compromised all the water in your fresh water storage system.

Third, you really need to have several filters for the water collection system. The first can be something as simple as a coffee filter or piece of cheese cloth. This is really just to keep large piece of crud out of the tank. The second should be between the "rain water tank" and the pumps. This should be a standard household type freshwater filter with a 5 micron filter or so. The third should be between the water line and the faucet—and should be a "taste" filter that removes any chemical contaminants and such. This is similar to the NSA 100 or other household kitchen countertop filtration system.

On a lot of boats I've seen that have rain water collection systems, the rainwater collection tank has a separate deck fill from the regular freshwater tanks. The deck fill is often located to simplify collecting rain water.

Most of the rainwater collection systems were made using some-type of canvas, usually synthetic for lower maintenance.

One of the better ones I saw was a 12' x 10' boom tent setup, which had a water retention dam around the bottom end of each side about 4" high. In the center of the dam was a 1" hose fitting, each of which had a hose attached to a Y-splitter. The bottom of the y-splitter led down to where the deck fill was.
__________________
Sailingdog

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Telstar 28
New England

You know what the first rule of sailing is? ...Love. You can learn all the math in the 'verse, but you take
a boat to the sea you don't love, she'll shake you off just as sure as the turning of the worlds. Love keeps
her going when she oughta fall down, tells you she's hurting 'fore she keens. Makes her a home.

—Cpt. Mal Reynolds, Serenity (edited)

If you're new to the Sailnet Forums... please read this
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
.

Still—DON'T READ THAT POST AGAIN.
Reply With Quote Share with Facebook
  #3  
Old 07-28-2008
Freesail99's Avatar
Senior Member
 
Join Date: Feb 2006
Location: New Jersey
Posts: 4,507
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 9
Freesail99 will become famous soon enough
Send a message via Yahoo to Freesail99
A coffee filter or piece of cheese cloth will not hold up for more then a minute with a heavy down pour. With the first filter you're really looking to filter out leaves, or large bugs and the like. A nylon window screen will serve this purpose. You can even double the screen up and make it catch even smaller items.
__________________
S/V Scheherazade
-----------------------
I had a dream, I was sailing, I was happy, I was even smiling. Then I looked down and saw that I was on a multi-hull and woke up suddenly in a cold sweat.
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote Share with Facebook
  #4  
Old 07-28-2008
sailingdog's Avatar
Telstar 28
 
Join Date: Mar 2006
Location: New England
Posts: 43,291
Thanks: 0
Thanked 9 Times in 9 Posts
Rep Power: 13
sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice
I was thinking of the metal, not paper coffee filters. But window screen would be a good idea too.

BTW, large bugs and leaves are generally not a problem, as most of the boats using these systems are generally in areas without either... leaves and large bugs are rather rare on the open water.

Of course, if you're using the rain catching system closer to land, and want to depend on it...get one of these:


and put it in the hose leading from the catchment system.
__________________
Sailingdog

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Telstar 28
New England

You know what the first rule of sailing is? ...Love. You can learn all the math in the 'verse, but you take
a boat to the sea you don't love, she'll shake you off just as sure as the turning of the worlds. Love keeps
her going when she oughta fall down, tells you she's hurting 'fore she keens. Makes her a home.

—Cpt. Mal Reynolds, Serenity (edited)

If you're new to the Sailnet Forums... please read this
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
.

Still—DON'T READ THAT POST AGAIN.

Last edited by sailingdog; 07-28-2008 at 11:25 AM.
Reply With Quote Share with Facebook
  #5  
Old 07-29-2008
Omatako's Avatar
Senior Member
 
Join Date: Sep 2003
Location: Auckland New Zealand
Posts: 2,376
Thanks: 0
Thanked 25 Times in 22 Posts
Rep Power: 11
Omatako will become famous soon enough
Quote:
Originally Posted by sailingdog View Post
BTW leaves and large bugs are rather rare on the open water.
So are chemical contaminants . Geez what kind of rain do you guys get?

I have successfully used my bimini with a hose connector into a gauze strainer and no filters and while at sea the water gathered this way has been delicious.

I would probably agree with the serious filtration if you're in a harbour or near an industrial area but at sea . . . . not necessary. Just a quick wash of the catchment device (my bimini) to get rid of any bird droppings (the only contaminants at sea and even then rare), dump the first few gallons and away you go.

Andre
Reply With Quote Share with Facebook
  #6  
Old 07-29-2008
Senior Member
 
Join Date: Feb 2008
Posts: 128
Thanks: 1
Thanked 1 Time in 1 Post
Rep Power: 7
SkywalkerII is on a distinguished road
Check out atomvoyages.com. James Baldwin and Mei have circumnavigated on a Pearson Triton. He writes for mags, does refits, etc. On his site, he describes a rain collection system.

I've spoken and emailed with James. He built a single burner kero stove for my boat. He's a very nice and helpful guy.

Skywalker
Reply With Quote Share with Facebook
  #7  
Old 07-29-2008
sailingdog's Avatar
Telstar 28
 
Join Date: Mar 2006
Location: New England
Posts: 43,291
Thanks: 0
Thanked 9 Times in 9 Posts
Rep Power: 13
sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice
Andre-

I'd rather design the system to deal with all conditions, and be able to use it whenever necessary, than for just open sea conditions, and have to worry about it contaminating or screwing up the water supply.

Quote:
Originally Posted by Omatako View Post
So are chemical contaminants . Geez what kind of rain do you guys get?

I have successfully used my bimini with a hose connector into a gauze strainer and no filters and while at sea the water gathered this way has been delicious.

I would probably agree with the serious filtration if you're in a harbour or near an industrial area but at sea . . . . not necessary. Just a quick wash of the catchment device (my bimini) to get rid of any bird droppings (the only contaminants at sea and even then rare), dump the first few gallons and away you go.

Andre
__________________
Sailingdog

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Telstar 28
New England

You know what the first rule of sailing is? ...Love. You can learn all the math in the 'verse, but you take
a boat to the sea you don't love, she'll shake you off just as sure as the turning of the worlds. Love keeps
her going when she oughta fall down, tells you she's hurting 'fore she keens. Makes her a home.

—Cpt. Mal Reynolds, Serenity (edited)

If you're new to the Sailnet Forums... please read this
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
.

Still—DON'T READ THAT POST AGAIN.
Reply With Quote Share with Facebook
  #8  
Old 07-29-2008
Every day, Something new
 
Join Date: Jun 2007
Location: Cruising
Posts: 60
Thanks: 5
Thanked 0 Times in 0 Posts
Rep Power: 8
marinegirl405 is on a distinguished road
Wow, thank you all so much for the hints and tips.. I've already added to my original thoughts for a design based on this feedback. Atom has a great web site with lots of information - his particular design won't work on my boat - I'll have to go with a awning/cloth catcher.

SailingDog - I get the filter idea (you are too funny), I also expect to have to add chlorine to keep water from going cloudy.
Reply With Quote Share with Facebook
  #9  
Old 07-29-2008
Cruisingdad's Avatar
Best Looking MALE Mod
 
Join Date: Jul 2006
Location: Mobile Liveaboards
Posts: 9,894
Thanks: 3
Thanked 97 Times in 52 Posts
Rep Power: 10
Cruisingdad is a jewel in the rough Cruisingdad is a jewel in the rough Cruisingdad is a jewel in the rough
Sew a gutter into your bimini. Put a down spout made out of cloth. Our friends on their Panda did that and said it was very effective. As mentioned earlier, you will want to dump the first few gallons for dirt, salt, and bird poop. We actually always got more dirt than bird poop anyways. I would also consider having at least a handheld water maker for drinking water. I think our friends used their water catcher for showering, etc. I do not think they drank it. If you put bleach in there you probably could, I guess.

Keep us posted on your progress and travels. Your tales and experiences can help a lot of people out here. Are you going alone or with kids? Where do you plan to cruise? Where have you cruised? What type of boat? What has worked and what has not?

We would all love to hear from you and your husband. Stick around!!

- CD
__________________
Sailnet Adminstrator & Moderator
Catalina 400 Technical Editor

2004 Catalina 400, Sea Mist IV (our boat, F/T Mobile Live Aboards in S FL and Keys primarily)
1987 Tayana Vancouver 42, Credendo Vides, (Mom and Pops boat, F/T Mobile Live Aboards in Puget Sound)

My Website:
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


Follow My Blog at:
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


Follow me on Facebook:

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote Share with Facebook
  #10  
Old 08-01-2008
Senior Member
 
Join Date: Jun 2007
Posts: 166
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 8
MoonSailer is on a distinguished road
RAIN WATER would seem to be naturally clean and pure most places. Water gets dirty when it hits the ground etc. Air generally contains very few bacteria etc. Bird poop etc is the most likely source of contamination. If you have a dedicated rain catcher that is stored clean until needed I doubt that any treatment is required..most places. Clean water does not support the growth of bacteria or algea. Microbes require nutrients such as phosphorus and nitrogen. rain usually does not contain many nutrients. I mean really rain is close to being distilled water!!!!!!
Reply With Quote Share with Facebook
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

 
Posting Rules
You may post new threads
You may post replies
You may post attachments
You may edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Boat stored in freezing rain labatt General Discussion (sailing related) 24 02-18-2007 12:07 AM
sailing in rain bkw Learning to Sail 12 02-10-2007 09:45 AM
Training in the rain @ Valencia Sailing NewsReader News Feeds 0 04-17-2006 01:15 PM
Gifts from the Rain Gods Doreen Gounard Cruising Articles 0 03-18-2004 07:00 PM
Gifts from the Rain Gods Doreen Gounard Her Sailnet Articles 0 03-18-2004 07:00 PM


All times are GMT -4. The time now is 06:30 AM.

Add to My Yahoo!         
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
SEO by vBSEO 3.6.1
(c) Marine.com LLC 2000-2012

The SailNet.com store is owned and operated by a company independent of the SailNet.com forum. You are now leaving the SailNet forum. Click OK to continue or Cancel to return to the SailNet forum.