Did search on SBO but didn't find any threads re this particular filter. If you have this on your boat, would like input on the big orange filter.
http://www.bigorangefilter.com/
http://www.bigorangefilter.com/
a. You're in Maine (cold water), he's in Florida. My head never stinks in the winter (I sail all year); only when the water hits 80F+.You should not need one. We treat our tank weekly with Odorlos and never had an issue.
We use KO sold on SBO, but still get odor when flushing. We have a big vent per Peggy's recommendation. We never use sea water, only fresh water for flushing. I'll look into Odorlos.You should not need one. We treat our tank weekly with Odorlos and never had an issue.
Odorlos often will work in tanks that aren't well enough ventilated to allow K.O. to function aerobically...however, the effectiveness of ANY product depends on using it according to directions.I would check out Odorlos as an alternative.
That's a bit over- dramatic, Steve. Vent filters don't explode, but when the charcoal in it gets wet, it creates a vent line blockage that does the same thing as any other vent line blockage...when air displaced by incoming waste has no place to escape, the system becomes pressurized...which can result in anything from a geyser when you open the deck pumpout cap to an eruption in the toilet (loads of fun for the person bending over the bowl pumping it) to even an burst tank. The vent line also provides a source of air to replace contents as they're pumped out...if the vent becomes blocked, the pumpout or macerator will pull a vacuum that prevents more than a gallon or two from being pulled out...and can result in a cracked tank.What do you think is going to happen if you "over-fill" a holding tank that has a filter on it? I think it will either "explode" or create a lot of back press as you try to pump the head.
We're only discussing odor out the tank vent, Steve. Permeated hoses will not contribute to that, only to odor INSIDE the boat.Odor from your tank is more likely to be the hoses and you should look into checking them out too.
You witnessed the geyser I mentioned earlier that's certain to be the result of pressure buildup in the system created by a vent blockage, no matter what blocks the vent...and if it really did look like an explosion instead of just doing the usual "Old Faithful" imitation, that tank had to be so pressurized that IT was about to explode! He prob'ly didn't need a pumpout any more, just a bath!Peggie: I have seen a power boater that had a filter on the vent line. The owner overfilled their tank. They move the boat over to the pump out dock and removed the fitting for the pump out. Now you may not think that it was an explosion, but when that SHIT started to escape out of that discharge house the owner thought it was an explosion. I never saw anyone run so fast, but it did not do him much good to run. (sort of like trying to dodge a bullet) <g> So it was not overly dramatic but a little exaggerated none-the-less!
Our vent line is 1", but about 10' long. So, we are going to add another vent line for cross ventilation per Peggy's book or consider the Sweetank she mentioned in this thread.For the problem you have, odorolus, KO and none of the other chemical will work. If you can rig a very straight, short vent line the problem will be eliminated. If the vent is long and winding (necessitated by the location of the holding tank) a filter is the answer. Bob
Why don't you just shorten the existing vent line, Mary? It's easy to do in most installations. And one 1" vent is usually enough to get the job done if it's <5', straight and doesn't rise more than 45 degrees. Give me a shout via email to work out the best way to do it either way.Our vent line is 1", but about 10' long. So, we are going to add another vent line for cross ventilation per Peggy's book or consider the Sweetank she mentioned in this thread.
Peggy, the vent line won't reach the thru hull if we shorten it. /quote]
Bill has a sick sense of humor sometimes.:naughty:
'Cuz air will only travel across the top of the tee...it won't go through the tank.Peggy, the vent line won't reach the thru hull if we shorten it. Tank is under v-berth at about knee level, thru hull is in head neaqr deck level about 3 feet aftof Mary's head when she is in the v-berth. Odor is only a problem in the cockpit when at anchor, then only briefly. Can easily t into line, run second vent into hanging locker on my side and out. More work would be run vent forward to anchor locker add 'nother thru hull.
I think he was serious! But then, he's a man...Peggy, the vent line won't reach the thru hull if we shorten it. /quote]
Bill has a sick sense of humor sometimes.:naughty:
It CAN prevent strong suction from imploding a tank. However a vacuum breaker will not prevent the system from becoming pressurized as a result of a vent blockage caused by anything...and a filter greatly increases the odds of a vent blockage while making it impossible to maintain the vent to prevent it. The workarounds to solve that problem have their own set of problems."
Peggy eludes to a complication I skipped: a vent line with a check valve in it must be maintained clean, and it is no longer as simple as squirting a hose. The valve will bock it. I hinted at this but did not spell it out in these exact words.
A water trap does not have this weakness--why we use them successfuly in homes--but a sink convieniently keeps the trap full, and houses don't jump and heel.
However, flushing is not so simple in some boats. On mine, the holding tank vent fitting is ONLY accesible by tender--it is under the tramp--and so a quick hose-out at the pump-out dock isn't so quick. I wouldn't be surprised if other boats had similar access problems. We have certainly discussed line routing troubles at length.