No Seacock on 1988 Rinker FV250

[CNYBoater]

Hoping for thoughts on this one.

Our first large (to us) boat. I believe it's labeled as an express cruiser. Forward and aft cabins, fridge, sink, toilet, etc.. Bought used in 2023 and had bottom painted this year. In water/slip for the season, but just took out because of some leaking trim tab hoses. Got those clamped and good to go.

But while out, I did a walk-around and did not see a single water inlet below the water line (ie seacock). But with the marine head, I would assume it requires one, correct? It's not a compost unit and there is a freshwater storage tank in the bilge.

The stern drive has water inlet holes, so no seacock required for that. And no A/C, so no seacock for that either.

But the head ... ?

 

[stelican]

Maybe the flush water for the toilet comes from the domestic water tank. I have seen boats with the toilet waste outlet above the waterline.

 

[Momac]

It is possible for a boat to have fresh water flush and a holding tank but no discharge to sea.

 

[CNYBoater]

Maybe the flush water for the toilet comes from the domestic water tank. I have seen boats with the toilet waste outlet above the waterline.

That's what I'm suspecting. Yikes about the waste outlet above the waterline. New to having a boat with a toilet, so it seems odd to me. The PO lived near one of the great lakes, but didn't have a slip.

Thanks for the reply.

 

[CNYBoater]

It is possible for a boat to have fresh water flush and a holding tank but no discharge to sea.

Thanks. Haven't taken it apart yet to see about a waste holding take. Will do that this fall before closing it up for our central NY winter.

Finally found a hidden owner's manual on-board. "SaniPottie" portable toilet. Hoping to get a compost toilet in there for next season - we'll see.

Before I re-launched to our slip, I noticed a thru-hull fitting that sits about 2-3 inches above the waterline. I haven't followed it yet, which would require taking apart the toilet area a bit. But it looks like it goes toward the forward bilge pump (which is there, but I haven't tested to see if it works). The rear bilge pump is new and routes to a different thru-hull fitting.

I guess I'll get to know the boat a little bit better this fall, next spring.

 

[Momac]

So it sounds like the toilet waste tank is the lower part of the toilet. The waste tank is removed from the boat to empty it?

 

[madabouttheboat]

I had a US sportscruiser once and it had a holding tank, no direct sea discharge. The holding tank could be pumped out via a deck fitting or pumped out via a macerator. The macerator outlet was above the waterline.

 

[CNYBoater]

So it sounds like the toilet waste tank is the lower part of the toilet. The waste tank is removed from the boat to empty it?

Some models of that brand, yes. There is a version of it that allows it to be connected to a water supply tank and a waste holding tank. We've been so focused on the exterior and mechanical portion of the boat this year, we haven't prioritized the interior much. That's for the upcoming fall/spring time, when we'll hope to spend more than a few hours on the lake at a time. The owner's manual for the boat states clearly that there should be at least one seacock midship, so I'm guessing that the PO did some customizing and sealed off the thru-hull fitting.

(FYI ... don't really feel comfortable asking PO due to his emotional hesitancy selling the boat and his recent major cancer/health issues. Trying to figure things out on our own.)

 

[CNYBoater]

I had a US sportscruiser once and it had a holding tank, no direct sea discharge. The holding tank could be pumped out via a deck fitting or pumped out via a macerator. The macerator outlet was above the waterline.

Thanks. This has 2 deck fittings on the starboard side - one labeled "water", the other labeled "waste".