simonfraser
Well-Known Member
just take it all out, seal up the hole, fit a bilge pump in the compartment and get a crew with a tender to chase after the boat for docking etc.
D
Deleted User YDKXO
Guest
No it doesnt because thats what I thought originally. Any seawater that gets onto the hatch is occasionally blown there by a beam wind but most of the time its dry whilst at speed
D
Deleted User YDKXO
Guest
Its not coming up the rudder stocks. Again I thought that and had the rudder stock bearings/seals changed last winter but the water is still getting in. Yes I have tasted the water but it was difficult to actually tell whether it was salty or not because I had a hydraulic hose for the steering in that compartment burst last season (probably another result of the moisture down there) and it was difficult to taste anything other than hydraulic oil. Yes I know hydraulic oil is toxic!
Is it possible to test water for saline content other than by sticking it in your mouth because if I knew 100% for sure whether it was salt or freshwater that would narrow down the possible causes considerably?
Croftie
Well-Known Member
markc
Well-Known Member
I have one of these which I keep on the boat just as an extra check for the water maker
https://www.amazon.co.uk/Accurate-T...way&sprefix=water+quality+test,aps,167&sr=8-6
https://www.amazon.co.uk/Accurate-T...way&sprefix=water+quality+test,aps,167&sr=8-6
vas
Well-Known Member
I have also one for exactly the same reason (although it usually gets only 100ppm, so things are still fine)
problem is that if the water is dirty(ish) as it would be in a bilge, especially if it had some hydraulic oil thrown in I doubt it would help and I'm not willing to test mine with fresh water+oil mix to check as I'm afraid I may damage the thing!
V.
D
Deleted User YDKXO
Guest
Ordered one thanks
TK Blue MAX
Well-Known Member
Any chance of sticking a cheap go pro type camera in the locker next time you take it out, might give you some clues .
Croftie
Well-Known Member
Just a thought, could you temp "seal" the hatch lid externally with something like gaffer tape
simonfraser
Well-Known Member
all too simple, not tasting the water either, this is a troll ?
Eren
Well-Known Member
For a long time I have been wondering if it is healthy to drink the water from water maker. Do you drink it? Sorry for the thread drift...
vas
Well-Known Member
well...
apparently according to the doctors (if we should ever pay attention to what they claim) it's too clean and missing various "components" (minerals et al) to be healthy.
I mean nothing's going to happen, you wont be sick or anything, but according to a couple of uni professors I asked, it's not what god intended.
OTOH, I have a reverse osmosis filter under the sink at home to clean the crappy city water and avoid carrying 6packs of 1.5lt bottled water. I have it since 2006, I drink from it all the time and all of us are still alive.
Home system is slightly "worse" in terms of cleaningness compared to the boat RO system (home 160-200ppm, boat <100, tap water 900+ that's from memory)
it has been suggested to use a mineral/whatnot filter in line after the RO in order to reintroduce the bits missing from the RO process. I'm planning to do that next year and fit a 20lt sterilised tank with a membrane/diaphragm thing to keep the pressure up and hook it to the extra 70ies sea water tap I have on the boat. This way I'll skip the 6-pack carrying down the pontoon although I'll need a few decent glass water bottles to fit in the fridges.
hope that helps
V.
Bandit
Well-Known Member
IIRC the OP has stabilisers which I assume are hydraulic. Could the same hydraulic pump not drive a hydraulic stern thrusterwhich are smaller and much more resistant to damp?
The other advantage of hydraulic thrusters is you can run them much longer.
The other advantage of hydraulic thrusters is you can run them much longer.
Eren
Well-Known Member
The difference between water from the house tap and boat tap is the incoming water source. From the house tap, you start with normal/natural water. That comes with all minerals included. At the boat, your start point is kind of pure water, produced from sea water. Even though I don`t have scientific data to support, I believe that this pure water is without the mineral content. Next time I should take a sample from the boat tap to have it analyzed.
vas
Well-Known Member
correct, don't bother taking samples I've done it last year
you need containers with certain chemicals in them in order for them to do tests apparently, keep them cool and get them back to the lab within a couple of days. Got three samples, watermaker from Volos port (wouldn't dare swim in there!), RO at home, tap water. Guess which was the cleanest? yep the port one...no mineral content, hence my thought of doing what the RO at home does, add AFTER the RO membrane a "trace elements" filter (this turns out to be the EN translation for the word I know in GR).
I'll ask a couple of colleagues when I find them around
V.
Last edited:
vas
Well-Known Member
true,
but OP has gyro stabilasation which may have hydraulics for it's own sake (not sure!), but I guess even so, is wont be "exportable" to other devices. It's not like a hydraulic fin stab system operating from one engine where you can tee off and carry oil wherever you feel like.
hm, coming to think of it, I could convert my watermaker to hydraulic and get rid of the generator altogether
V.
MapisM
Well-Known Member
Wrong assumption. Deleted User has an electric gyro stabilizer onboard.
markc
Well-Known Member
correct, don't bother tanking samples I've done it last year
no mineral content, hence my thought of doing what the RO at home does, add AFTER the RO membrane a "trace elements" filter (this turns out to be the EN translation for the word I know in GR.
I'll ask a couple of colleagues when I find them around
V.
A couple of my clients are very big in the world for water softeners and RO, and over the time of us building their websites this subject has come up a lot. A powerful RO system, such as found on the boat will, as mentioned, remove everything from the water, including all minerals. It is perfectly safe to drink, and long term, providing you are not relying on the minerals in the water for deficiencies elsewhere in your diet. The main problem (according to the client) is that pure water does not taste great, which is why they build in a re-mineralization 'filter' into their home RO systems to improve the taste. Plus, this also gives them additional income for regular replacement of this filter along with the other filters.
I don't drink the water on the boat especially as it's always a mix of dock water and RO water., but would be happy to drink the RO water.
kashurst
Well-Known Member
back to stern thruster issue
does the deck hatch have enough/any drains in the surrounding channel?
does the deck hatch have enough/any drains in the surrounding channel?
Eren
Well-Known Member
Ventilation is an issue with electric thrusters. I have some overheating problem with my bow thruster, I am planning to add a fan that will work in parallel with the thruster. If you will think about boxing solution, I believe that such a side-solution will be needed.
But I would be more concerned with a level of water ingress that a bilge pump cannot keep up with.
But I would be more concerned with a level of water ingress that a bilge pump cannot keep up with.
