Offshoreonly.com - 47 Lightning Plumbing Questions

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The boat was new as of last year, but I never really used the fresh water tank. I did fill it a few times, and had no issue, however I noticed the mid level light come on when I topped off the tank. Never thought much of it. I'll keep digging and report back

Quote:

Originally Posted by RT930turbo (Post 4441844)

Ok, I found the fresh water tank. It is burried on the port side as stated. Where does the large hose (looks like wast hose) that is on the intake side of the water pump go? The port side hose, right in pic, must go to the tank, but where does the left side of the T go to?

And how on earth is it filling my waste tank. This makes zero sense!!!

[ATTACH=CONFIG]555813[/ATTACH][ATTACH=CONFIG]555813[/ATTACH][ATTACH=CONFIG]555813[/ATTACH]

Yeah, that connection doesn't make a lot of sense, where that tee is. I will take a picture of mine the next time I'm down at the boat which should be within a few days. Water supply lines are only 5/8" ID hoses. The 1 1/2" lines are only supposed to be used for waste lines or vent lines. Check under your sink in the galley and see where that waste line is plumbed to. It makes no sense for there to be a tee off of a 1 1/2" line to connect to a water supply line and I would bet that the tee is what is filling your holding tank. Do you have a vacuflush or an overboard discharge for the toilet?

The 1 1/2" line is the water supply header from your tank. All your water stations "T" off of that. The 1 1/2" stops under the floor by the toilet and should tie into your sink & stool. Is it possible you over filled the fresh water tank & flowed thru your stool into the waste tank? Really doesn't make sense why your waste tank filled.

Pray the waste tank cannot back up to the fresh water system.

Quote:

Originally Posted by Interceptor (Post 4441941)

Pray the waste tank cannot back up to the fresh water system.

This is my biggest concern. These two systems should never touch each other :picard1:

The large line that runs to starboard makes a turn towards the stern. I wonder if this somehow vents the tank??? What a screwed up way to plum a boat

Quote:

Originally Posted by RT930turbo (Post 4442022)

Note to self...only drink BOTTLED water on Artie's boat.

Does the toilet pull water to flush from the fresh water tank? On my Baja it is set up to do so and a bad flapper in the flusher and would allow water/gases back into the fresh water... Yummy!!!

Quote:

Originally Posted by jamontes (Post 4442212)

Does the toilet pull water to flush from the fresh water tank? On my Baja it is set up to do so and a bad flapper in the flusher and would allow water/gases back into the fresh water... Yummy!!!

Yes it does, however, The bowl was at normal level, and the vacuum pump is mounted higher than the bowl, so if there was a leak it would overflow the bowl before it could fill the tank. As far as I can tell there is zero contamination on the fresh side, but I'm going to sort this out before I trust it!

Quote:

Originally Posted by sommerfliesby (Post 4442203)

Note to self...only drink beer or rum drinks on Artie's boat.

I fixed that for you.....

Nice seeing you guys yesterday.

Is there a check valve somewhere stuck open?