Cruisers Forum

Join CruisersForum Today

  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on Cruisers Forums. Advertise Here
Thread Tools Search this Thread Rating: Thread Rating: 3 votes, 5.00 average. Display Modes
Old 28-10-2006, 20:56   #1
Eternal Member
Chief Engineer's Avatar

Join Date: Aug 2006
Location: North of Baltimore
Boat: Ericson 27 & 18' Herrmann Catboat
Posts: 3,798
Looking for float switch for holding tank

The old float switch was mounted in the top of a keel holding tank.

The switch was a bulb on a cable...kinda like the bulb on a sump pump.

The problem is all the bulbs I find now are 3" or more in dia. I have a 1 1/2" hole to put it through.

The old one is about 1 3/8 dia. All the other holding tank level switches
like Sea-Lands are very short....the tank would be almost full before it triggered.

ANY idears would be welcomed

Chief Engineer is offline   Reply With Quote
Old 29-10-2006, 00:56   #2
Senior Cruiser

Join Date: Apr 2006
Location: California
Boat: 1980 Endeavour 43 (Ketch)
Posts: 2,453
hummm... the bulb is made of what material ... if rubber or simillar, can't you 'fold it' and shove it through and then allow it to expand once on the inside?

S/V Elusive is offline   Reply With Quote
Old 29-10-2006, 01:15   #3
Senior Cruiser
GordMay's Avatar

Cruisers Forum Supporter

Join Date: Mar 2003
Location: Thunder Bay, Ontario - 48-29N x 89-20W
Boat: (Cruiser Living On Dirt)
Posts: 36,100
Images: 241
Wema Modesl: “SHS”, or “SSS & SSL” >
SeaLand “Tank Watch” >
Gord May
"If you didn't have the time or money to do it right in the first place, when will you get the time/$ to fix it?"

GordMay is offline   Reply With Quote
Old 29-10-2006, 11:04   #4
Senior Cruiser
Alan Wheeler's Avatar

Cruisers Forum Supporter

Join Date: Dec 2003
Location: Marlborough Sounds. New Zealand
Boat: Hartley Tahitian 45ft. Leisure Lady
Posts: 8,038
Images: 102
Yeah I know the "bulb" you are talking about. It is used in domestic situations where size is not an issue. I once had a small holding tank for grey water and used a bilge pump float switch. It worked OK, but I guess in a holding tank with sludge, it may stick. There are electronic devices that have no moving parts that I would suggest you go for. Two that I know of, one has propes that touch the liquid and the other senses through the plastic tank material.

For God so loved the world..........He didn't send a committee.
Alan Wheeler is offline   Reply With Quote
Old 29-10-2006, 12:07   #5
Senior Cruiser
delmarrey's Avatar

Cruisers Forum Supporter

Join Date: Mar 2003
Location: Philippines until May
Boat: Boatless Now
Posts: 10,996
Images: 122
If it's for a holding tank......

No moving parts would be better. Junk can get around the float type and give you a false reading. There's not much worse then an over flow at the dock and hoping the vent works.

Gord has a couple sites above.

delmarrey is offline   Reply With Quote

holding tank

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Regulations for toilet holding tank Weyalan Plumbing Systems and Fixtures 57 19-08-2007 02:47
Waste Tank and Hose Replacement Project Latitude9.5 Plumbing Systems and Fixtures 5 06-08-2006 11:26
Flushing Fuel Tank Starbuck Construction, Maintenance & Refit 47 27-04-2006 14:42
Electo switch problem irwinsailor Construction, Maintenance & Refit 7 21-04-2006 14:40
"SensaTank" Fiel-Effect Tank Monitor GordMay Construction, Maintenance & Refit 2 24-07-2004 00:55

Advertise Here

Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 01:42.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2019, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.