Fitting Holding Tanks on a Bavaria For Turkey

[grandad1963]

We have a 2000 42' Bavaria 4 cabin 9 berth yacht in Turkey, the boat is not fitted with holding tanks, we are considering fitting either one or two tanks whatever is required to comply with the local legislation, has anyone any advice or experience that would be helpful to achieve the satisfactory installation of holding tanks?

[HopCar]

The usual vent line on holding tanks is 5/8". Going bigger can help reduce odors by letting in more air and encouraging aerobic bacteria to digest the poop.
Read Peggie Hall's book before starting the project.


Get Rid of Boat Odors by Peggie Hall

[grandad1963]

Thank you for this info.

[rivonia]

When fitting a holding tank. Make sure as well as the pipe/hole fitting for the pump out on deck, you also have the facility to be able to divert it straight out to sea.

Do fit the largest Holding tank that is feasible for the space that you intend to fit it.

Have an access point so you are able to open it and clear blocked pipes/baffle plates. It would appear that in holding tanks the baffle plates eventually get clogged with the contents.

Good luck.

Peter

[grandad1963]

Thank you, all noted.

[Boracay]

It's nice to have a big holding tank.

I fitted a polyethylene holding tank of about 150 litres to Boracay. Used 2 x 1/4" breathers and no worries so far. Last about 10 or so days with just 2.

The biggest problem that I have encountered is that the top of the holding tank is about 1m above the pan and it takes a bit of work to empty the pan.

On the other hand that puts the top of the holding tank just below the deck and makes it easy to empty.

If I was doing it again I'd use a smaller tank below the sole and empty it to the larger tank with a macerator pump as it became full. Some sort of gauge is a good idea. I used a dip stick and it's not something one wants to do all the time.

[rivonia]

Originally Posted by Boracay

It's nice to have a big holding tank.

I fitted a polyethylene holding tank of about 150 litres to Boracay. Used 2 x 1/4" breathers and no worries so far. Last about 10 or so days with just 2.

The biggest problem that I have encountered is that the top of the holding tank is about 1m above the pan and it takes a bit of work to empty the pan.

On the other hand that puts the top of the holding tank just below the deck and makes it easy to empty.

If I was doing it again I'd use a smaller tank below the sole and empty it to the larger tank with a macerator pump as it became full. Some sort of gauge is a good idea. I used a dip stick and it's not something one wants to do all the time.

I do believe that the point you made re Having a GAUGE fitted is brilliant. We have not got one and we only know it is ready to empty by the sound of water going in. It works for us. If we had to do it all over again we would fit some type of GAUGE.

Peter