whats wrong with the SL400? Sticky? Stiff? if that is your problem pump a tablespoon full of Cooking Oil through and watch your faeces zoom away when you next use it /forums/images/icons/wink.gif
The RM-69 is the most unreliable unit I have ever owned. Unfortunately the very small plinth in the Sadler 34 will not allow me to fit any other type. I have replaced the pump unit three times now as updates have been introduced. The sealing arrangement on the base failed a couple of weeks ago, due entirely to poor design. The plastic pump handle has broken twice, again a design fault. I repaired and improved the last one somewhere off Le Havre and it still works fine. The piston design is pathetic and no amount of vegetable oil, or any other type, will make the O-ring seal properly. The piston rod seal lasts a couple of months, when water and other things squirt into the boat. The valving, although one might think it good at least for its location where maintenance should be easy, is fiddly and the unit is very difficult to replace. When doing this a couple of weeks ago two of the lugs in the pump housing sheared off as I was replacing the self-tappers that hold the top on. Highly not recommended.
The jabsco toilet is ok, I have two, one a standard bowl, which I would reccomend. However you cannot go wrong with a baby blake, especially with the new top seal arrangement, however they are bloody expensive new, but you can find them dumped all over the place and would make a nice winter rebuild project, getting all the brionze bits rechromed and painting all the other bits with "smoothrite" repalcing the screws etc. with stainless, a lot of toilet for not a lot of money. The old ones can be modified with the new top seal.
Had the same experience. Plus I found that the repair kits were twice the price of those for a Par, which fortunately for me pretty well went in the same space. The cost of three repair kits for an RM paid for the Par. (Then).
I'm dumping my RM69. After looking around I've just ordered a LAVAC popular - have found those to be very reliable in other boats, easy to use and the least horrible to clear if blocked. Good price at Caley Marine 01463236539
I've just bought a Lavac Popular for the boat I'm building - agree that they seem to be the most reliable/simple to strip down. I paid £145 + VAT from mailspeedmarine.com. How much did Caley Marina charge?
Malcolm
(you called in to see me the other day when I wasn't here - try again soon)
I absolutely agree - buy an old Baby and rebuild it and you will have something that will last, reliably, for the rest of your boating life.
There are at least three designs of top seal. You need a new top casting to update.
However, for the economically minded, the original packing gland type does work reasonably well - the great point to keep in mind is that the piston rod wears in the middle, and no amount of fiddling with the glands will make up for that. So replace the piston rod whatever else you replace. It is not one of the expensive bits. The cognoscenti replace the bronze rod with a stainless one....harder wearing!
I have one blakes aboard, the blakes victor! Now that is a piece of victorian engineering, with huge handle and pedal to operate the two valves for flush and a 6" diameter pump, watch that shift some stuff, all the valves have covers, so you don't have to strip the thing, all bronze and brass, just rebuilt it, and had it rechromed, it's a masterpiece, blakes don't have any parts for it, but most of what I will ever need, (gaskets etc.) I can make, it'll outlive me thats for sure. I always show everybody it when I have guests on board, a real throne that one! I wish I could find another one, I'd have it in a flash, but they were built for ships, not yachts.
Very sensible to dump the SL400 - I've got rid of two, previous & the present boat. I fitted PAR - now marketed by Jabsco, good units, never bouight any spares yet. If uou can afford it go for the large bowl version - more comfortable.
Lavac is the one most frequently used by hire boats.
It has less to go wrong and much simpler to clear a blockage. It is also been reported that it uses less water than others.
I have an old Lavac which has been going for almost 30 years. Apart for some discoloration on the seat, no problems at all. And it says "Royal Doulton" on the pan.
Sorry, but does it matter how much water it uses in a sea toilet, surely more iss better, good flushing, unless we are talking holding tanks, then I don't think I'd be using a lavac.
Why wouldn't you suggest Lavac with holding tanks? And what else would you recommend?
I'm also considering a refit of the toilets in my boat, together with the installation of a holding tank.
I read that Tecma and Vacuflush are both good for such application, but never heard any real-life experience.
...just know for sure that they're both expensive, particularly the last one.
I feel and it's a personal thing, that pumped toilets as blakes or par or whatever tend to macerate the product better than vacunm toilets, which will aid breakdown and tend to lead to less blockages, to be honest I would tend to go towards an electric macerating toilet for a holding tank. I know this is just not possible with a lot if not most cruising yachts. So please don't shout at me. I would want as much maceration as possible in a holding tank, you are going to need an electric pump to empty at sea, unless of course you use a hand pump for that aswell, this is just my opinion and maybe some ramblings, but there it is. IMHO, FWIW.