Help Needed On a Lectra/San

R

reds

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Joined
Feb 10, 2021
RO Number
1848
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5
I have a custom-built 40' sport fishing boat that presently has an electric toilet that flushes to a holding tank using salt water.

A couple of years ago I purchased (brand new) a Lectra/San unit, but have not installed it.

What I would like to do is keep the 30 gal holding tank (I run charters and the demand on the toilet is sometimes great) and hookup the Lectra/San after the holding tank, to empty overboard thru a sea cock.

I realize a macerator pump will be needed to pump the waste to the Lectra/San but I'm unsure if the system will need a vent after the holding tank. Also what would be the best pump to use?

Any suggestions, comments or input would be appreciated. Thanks
 
Reds,

Do you have a "Lectra/San" or the newer "Electro Scan"? That's important.

I have an Electro Scan and a Hold-n-Treat system. Only the tank needs a vent. Vic will probably take over shortly to tell you more, but the system does exist, and works very well.
 
quote:
Originally posted by mixman

Reds,

Do you have a "Lectra/San" or the newer "Electro Scan"? That's important.

I have an Electro Scan and a Hold-n-Treat system. Only the tank needs a vent. Vic will probably take over shortly to tell you more, but the system does exist, and works very well.

Click to expand...

No I have a Lectra/San. I bought it before the switch over. My tank is vented. Thanks for the input.
 
I'll have to let Vic comment further. I'm not sure about setting up a Hold-n-Treat with a Lectra/San. I think late-models might be able to do it, but older ones couldn't. It's something to do with the electronics package. If with the holidays you don't hear from him here, you can always give Raritan a call: (856) 825-4900
 
Could you use a Y valve? When inshore divert waste to holding tank & when 3 miles off shore, pump overboard. Since you charter, I'm guessing, more times than not you'll be 3 miles out ??
iteme1901w180.jpg
 
Reds: Certainly Vic is the expert here; but on my SF my heads (2 Atlantis) first pump through the Lectra/San then a “Y” valve either diverts to the holding tank or overboard (of course we only pump overboard when we are off shore 3 miles or more). That way the sewerage has been treated prior to going into the holding tank. Hope this helps. Jerry
 
quote:
Originally posted by Grand Slam

Reds: Certainly Vic is the expert here; but on my SF my heads (2 Atlantis) first pump through the Lectra/San then a “Y” valve either diverts to the holding tank or overboard (of course we only pump overboard when we are off shore 3 miles or more). That way the sewerage has been treated prior to going into the holding tank. Hope this helps. Jerry

Click to expand...

I believe Vic has posted before that once it goes into a holding tank, it is no longer considered "treated".
Al
 
Reds, when 3 miles or more offshore, the toilet can pump directly out into the water. No treatment is necessary. When inside the 3 mile limit is where the issues arise. The best of all worlds for you would be to get the component version of the Raritan Hold 'N Treat system, that allows you to use an existing (preferably plastic) holding tank and macerator pump. First, you'd add a "Y" valve that will allow you to pump directly overboard when outside the 3 mile limit. When inside the 3 mile limit, the "Y" valve must be "secured" in the holding tank-only position (see Bob J.'s photo offering above).

Then, everything from the toilet first goes into the holding tank. When in a no discharge zone (NDZ), it is a holding tank only, and must be pumped out at a dockside facility or via a pumpout boat when it becomes full. But after leaving the NDZ, you can turn on the Hold 'N Treat and it will automatically begin transferring measured amounts from the holding tank to the treatment system, where it is treated and discharged overboard. So as you're chugging away from the NDZ, the treatment system is happily treating the contents of the holding tank and sending it overboard. When the tank is empty, it remains on standby. It has a maximum capacity of 5 gallons/hour.

Read more here:

http://www.raritaneng.com/pdf_files/hold_n_treat/holdntreat.pdf

NOTE: to be used in a Hold 'N Treat system, you must have either the new Electro-scan system or a Lectra/San MC version that has the "E" chip on it's printed circuit board (look on the biggest chip on the printed circuit board, down on the actual treatment unit - it must say "LSE" on it). If you have an earlier version of the Lectra/San MC, it will have to be updated, in order to work with a Hold 'N treat controller.

No version of the Lectra/San earlier than the MC version can be made to work with a Hold 'N Treat controller.
 
See, Vic truly is "The Head Master"!
 
Kurt, you're too kind! [:-bonc01] Hope you and Kristin had a nice Christmas! [;-xmas]
 
We had a great Christmas. Heading up to our ski place tomorrow for the rest of the holidays.

I trust you and yours had a nice Christmas as well? I hope so.

When you get REALLY bored this Winter, you can watch my new boat website and make sure my Electro Scan doesn't freeze! We can start a new thread: The lengths Kurt will go to NOT winterize his Electro Scan! :-)

http://www.voiceover.com/personal/deuce.htm
 
Thanks Vic for your advise.

Thanks Guys for all the input.
 
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