| Author |
Message |
Tim Brandt (Timb) (12.8.192.60)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, October 02, 2003 - 3:04 pm: | |
Hello all,
I have been soaking up all the info I can from this great list and finally decided to post a question. I am a long time boater, my wife and I have been full time live-aboards twice. We now live in a house and are starting to research converting a bus, I notice many of the systems are very similar with one exception. It appears that all RV heads rely on gravity for the most part for flushing capability vs the marine heads I have had that actively pumped and macerated the waste prior to sending it to the holding tank. Is there a reason this type of head is not favored in an RV? Obviously there is no raw water intake on an RV but marine heads also have a fresh water flush option. Curious to hear everyones thoughts.
Tim |
Gary McFarland (Gearheadgary) (209.128.99.4)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, October 02, 2003 - 3:16 pm: | |
Hi Tim,
I'm planning to use them for a couple of reasons:
1) I, like you, Know them and like them.
2) You can locate the Black Water tank anywhere you like, as it's a "Force Flush" not a "Gravity Flush"
I just wish there was an MSD option.
Gary |
Tim Brandt (Timb) (12.8.192.60)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, October 02, 2003 - 4:03 pm: | |
Yeah no road going lectrasan
I don't know if they still exist but back in the 70's when my dad had motorhomes he told me about a system that injected black water into the exhaust manifold when it reached suficient temperature so if you were on a long leg you could drain the tank....this was on a gas motor so higher temps I don't know if a diesel would have sufficent temp for this or if they even still exist. |
Gary McFarland (Gearheadgary) (209.128.99.4)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, October 02, 2003 - 5:14 pm: | |
That would keep tailgaters down...
Gary |
Jerry Campbell (206.163.131.87)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, October 02, 2003 - 6:30 pm: | |
Hi Tim,
I also have a marine toilet I'm thinking about using in my bus. BUT, It seems like it would take a lot more water to pump the waste than just to let it drop into the tank. One of these days I'm going to test to see just how much water it takes to flush it.
good luck.
Jerry
'75 Crown |
jim mci-9 (209.240.198.60)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, October 02, 2003 - 6:50 pm: | |
i have the inject-into-the exhaust on my holiday rambler motorhome.... never have used it.... so i dont know if it works or not... i do know that it was factory installed as an option when the coach was made as a 1977 model... |
Jim Ashworth (Jimnh) (172.172.204.118)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, October 02, 2003 - 8:06 pm: | |
Biggest reason for not using marine heads is cost. No neet to spend $700+ for a head when an RV toilet for under $200 will do the job. That being said, I have a Raritan marine macerating head and love it. No smell into the bus when flushing underway, no problem aligning the toilet over the tank and it's swirling action takes care of skid marks. It does use a little more water than the RV units I have had in the past.
Jim |
Gary McFarland (Gearheadgary) (209.128.99.4)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, October 02, 2003 - 8:12 pm: | |
Not sure how much cost advantage, if you compare quality. a china RV head is not $200, and I, like you, don't want to smell the contents of the black water tank.
Also, they're fairly easy for me to get my hands on, actually I think I have a spare.
As for water usage, I think marine heads use only a few cupfulls.
Gary |
Dale MC8 (66.81.135.5)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, October 02, 2003 - 8:58 pm: | |
I have talked to 'oldtimers' at the RV dealership I worked at before retirement about the injection into the exhaust manifold of black water system and was told that it was a good idea in theory, but in reality not so good. Took a very long trip with no stops to incenerate a noticable amount of solid waste. Too bad, I really liked the sound of the system. Maybe someone can come up with a modern effective system.
My 2 scents (pun intentional) worth
Dale MC8 |
FAST FRED (67.75.106.190)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Friday, October 03, 2003 - 5:17 am: | |
Marine heads will work , but the problem is EVERY mfg recomends that they NOT be conected directly into the potable water supply.
My guess is they worry about a contamination from a failed check valve or pump?
Perhaps with a seperate tank for a flush supply it would be safe.
If anyone actually wants a marine head (working used) I'll bring a couple to Jacks in FL.
FAST FRED |
Gary McFarland (Gearheadgary) (209.128.99.4)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Friday, October 03, 2003 - 12:43 pm: | |
Hey FF,
I never heard of that myself, but it make sense. I'll install a check-valve.
Gary |
Jim Wilke (12.46.52.74)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Friday, October 03, 2003 - 2:24 pm: | |
Hey jim mci-9,
Is that wastewater disposer on you HR called "Electra-San"? Reply directly to: jimw at northern-lights.com please.
Jim-Bob |
Jim Ashworth (Jimnh) (172.175.26.170)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Friday, October 03, 2003 - 5:22 pm: | |
Hey FF- My Raritan Crown Head manual say to connect it to a pressure water supply directly with a solenoid on the supply line. Some heads are made to use onboard pressureized water instead of the hand pump as is common with seawater flushing. Quite frankly, the way it is set up it ends up gravity flow to the toilet once the solenoid closes so there is almost no chance of contamination unless the bus rolls over with no water pressure and the solenoid open. Contamination in that case would be the least of my worries, LOL.
Jim |