Next message: R C Smith Jr: "Re: T&T: SuperMax 44lb and anchoring in jello like mud covered in weeds"
In a message dated 6/25/04 12:04:32 AM, Larry Z writes:
<< We successfully aerated a private 5 acre lake and swimming beach by using
a
commercial air compressor driven bubbler system. Following a procedure
devised
by Cornell Univ. Agriculture Extension we enclosed the air jet in a 12"
diameter PVC tube open at both ends and extending from near the
bottom to near the top of the lake. Bubbling air entrained a column of water
and
created a circulating flow, disrupting the thermoclines and providing
sufficient mixing to aerate the entire body of water. >>
Addendum:
Of course this technique only works where the water level is relatively
constant as in lakes or reservoirs. For use in a holding tank the tube must be well
perforated to let water exit at various levels or a venturi nozzle must be
used on the air bubbler to entrain a body of water. For holding tank type
sludge, mechanical stirring is the best. But I suspect that for a well used boat
subject to the usual rock and roll of the sea, the natural stirring of the
contents of a holding tank along with aeration should do a good job of minimizing
odors. Boats that never leave the dock may need other solutions (i.e. frequent
pumpouts or using the marina's toilets).
Larry Z
_______________________________________________
http://lists.samurai.com/mailman/listinfo/trawlers-and-trawlering
To Unsubscribe send email to
Include the word Unsubscribe (and nothing else) in the subject or body of the message.
