Reply
 
LinkBack Thread Tools Search this Thread Display Modes
  #1   Report Post  
Lew Hodgett
 
Posts: n/a
Default Bilge pump switches


"Dazed and Confuzed" writes:

If you can be so sure that there are never going to be any leaks....


I kept my boat on a mooring unattended from Monday thru Thursday, 6 months
out of the year without any problems.

conductivity.


Conductivity is the lowest cost and most unreliable of all the electronic
level measuring technologies. Too many problems with build up on the probes
over time.

So put your sensor in a small tube open at the top and with small holes at

the
bottom. this will be at whatever the bilge level is, but will more or less
isolate the sensor from sloshing.


AKA: "Stilling well" an old and out of date technology abandoned as too
labor intensive to maintain by the waste water industry at least 20 years
ago.

You may be right.


I know I am. 20+ years in the business tells me that.

So what is the method of your $500 solution?


There are a couple of technologies that have a chance.

You could use a capacitance probe that ignores probe build up.

My choice would probably be a vibrating tuning fork. By its very nature, it
ignores probe build up.

Either one of these units would include a build in time delay set for maybe
30 seconds.

The pump would energize after a time delay when the liquid contacts the
probe.

The time delay helps to eliminate splash or sloshing false starts.

When the liquid falls below the contact point, the 30 second time delay
would keep the pump running for 30 seconds.

The alternate to time delays is a 2nd probe.

SFWIW, we provide a 100% money back performance guarantee for every unit we
sell.

We definitely would not be willing to provide that guarantee for this
application.

Maybe this gives you a little better perspective why I consider level
switches in the bilge of a boat a waste of time and money.


--
Lew

S/A: Challenge, The Bullet Proof Boat, (Under Construction in the Southland)
Visit: http://home.earthlink.net/~lewhodgett for Pictures


  #2   Report Post  
Dazed and Confuzed
 
Posts: n/a
Default Bilge pump switches

Lew Hodgett wrote:

"Dazed and Confuzed" writes:

If you can be so sure that there are never going to be any leaks....


I kept my boat on a mooring unattended from Monday thru Thursday, 6 months
out of the year without any problems.




What if you did have a leak?



conductivity.


Conductivity is the lowest cost and most unreliable of all the electronic
level measuring technologies. Too many problems with build up on the probes
over time.


agreed.



So put your sensor in a small tube open at the top and with small holes at

the
bottom. this will be at whatever the bilge level is, but will more or less
isolate the sensor from sloshing.


AKA: "Stilling well" an old and out of date technology abandoned as too
labor intensive to maintain by the waste water industry at least 20 years
ago.


Yeah, but it works. and works well. Of course, a time delay would work here too.



You may be right.


I know I am. 20+ years in the business tells me that.

So what is the method of your $500 solution?


There are a couple of technologies that have a chance.

You could use a capacitance probe that ignores probe build up.

My choice would probably be a vibrating tuning fork. By its very nature, it
ignores probe build up.

Either one of these units would include a build in time delay set for maybe
30 seconds.

The pump would energize after a time delay when the liquid contacts the
probe.

The time delay helps to eliminate splash or sloshing false starts.

When the liquid falls below the contact point, the 30 second time delay
would keep the pump running for 30 seconds.

The alternate to time delays is a 2nd probe.

SFWIW, we provide a 100% money back performance guarantee for every unit we
sell.

We definitely would not be willing to provide that guarantee for this
application.

Maybe this gives you a little better perspective why I consider level
switches in the bilge of a boat a waste of time and money.


Yes, I do see your point. But in this application, I need a switch that
functions as described in my original question. You make good points though.
thanks
Bert





--
Lew

S/A: Challenge, The Bullet Proof Boat, (Under Construction in the Southland)
Visit: http://home.earthlink.net/~lewhodgett for Pictures





--

Don't like the looks of nudists? Complain to the manufacturer.


  #3   Report Post  
Lew Hodgett
 
Posts: n/a
Default Bilge pump switches


"Dazed and Confuzed" writes:


Yes, I do see your point. But in this application, I need a switch that
functions as described in my original question.


Good luck.


--
Lew

S/A: Challenge, The Bullet Proof Boat, (Under Construction in the Southland)
Visit: http://home.earthlink.net/~lewhodgett for Pictures


  #4   Report Post  
Dazed and Confuzed
 
Posts: n/a
Default Bilge pump switches

Lew Hodgett wrote:

"Dazed and Confuzed" writes:


Yes, I do see your point. But in this application, I need a switch that
functions as described in my original question.


Good luck.

--
Lew

S/A: Challenge, The Bullet Proof Boat, (Under Construction in the Southland)
Visit: http://home.earthlink.net/~lewhodgett for Pictures


thank you.


--

Don't like the looks of nudists? Complain to the manufacturer.


Reply
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules

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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Bilge Pump Switch Socalsail Boat Building 1 December 29th 03 11:10 AM
Bilge Pump Switch Gould 0738 General 31 November 1st 03 10:08 PM
Bilge pump switch - again David Flew Boat Building 0 October 29th 03 08:06 AM
Bilge Pump Switch Ron Thornton Boat Building 5 October 25th 03 11:07 AM
Bilge Pump Switch Ron Thornton Boat Building 0 October 22nd 03 03:10 PM


All times are GMT +1. The time now is 04:16 AM.

Powered by vBulletin® Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Copyright ©2004-2024 BoatBanter.com.
The comments are property of their posters.
 

About Us

"It's about Boats"

 

Copyright © 2017