1st of many questions... Where is my seacock valve? 2000 Super Air

**SoldTheBayliner** · 08-22-2011, 05:12 PM

Doing some more reading... is the valve located at the thru-hull, or is it further up in the line? The ones I'm seeing on google, just trying to figure out what it looks like, make it look like the only such thing is mounted right at the thru-hull. I'll get back in there and look there first, unless someone wants to enlighten me...

**Chexi** · 08-22-2011, 05:14 PM

The ball valve emergency shut-off is very close to the v-drive unit. If you pull the back seat, you should be able to see it. There should be an extension rod connecting to it that is visible near the mini tow pylon.

**mastercard** · 08-22-2011, 06:11 PM

Bayliner, I can send you a pic. PM me your digits.

**mastercard** · 08-22-2011, 09:25 PM

**SoldTheBayliner** · 08-23-2011, 09:20 AM

Aha...thank you. I saw that....but mine's got no lever attached to it. I'll have to find a lever to get ahold of it with I guess. Clockwise to close, counter-clockwise to open?
So the intake is just the one side, and the other side..? I followed that line up to a white thing that looks like a cartridge filter.

Are you guys leaving the ball valve open all the time? If this one line feeds both tanks, then I've got another issue if one tank is filling and the other isn't, yes?

Thanks for the replies...

**mastercard** · 08-23-2011, 12:57 PM

I usually leave the ball valve closed unless I am filling or draining the tanks. The cartridge apparatus is the strainer for your engine cooling water. That is something that needs to be looked at frequently to make sure it doesn't get stopped up.

On my boat, which I believe is all original, both ballast tanks fill from a single intake thru one valve, thru one pump and then a "Y" or "T" to the tanks. I leave the the vents closed while filling but I do open them while draining. When one tank fills up before the other just plug the thru hull overflow, forcing the water to the other tank and close the ball valve when done. It isn't the best system for sure and I do plan on upgrading but i'll deal with it for now. Hope this helps.

**Chexi** · 08-23-2011, 01:05 PM

I used my 2000 SAN almost every day last week, and what I found was that other than 80 lbs of steel split in half between the storage area under the two side bow cushions, I did not need any extra ballast for wakeboarding at 21.5 - 22 mph. This was with as few as just the driver in the boat. The wake was pretty much perfect actually, and I had enough gas to go all day and then some. The only time I needed extra ballast was for surfing. Just something to chew on.

**SoldTheBayliner** · 08-23-2011, 01:16 PM

Thanks again guys... so the port intake is for the ballast, and the starboard one is the engine water intake? Got it. Can someone confirm clockwise to close, counterclockwise to open for the ball valve?

Also, I'm unclear on how the vents work if there's also an overflow... my understanding is that the vents close the top of the ballast tank, so that the air in the tank has no way to escape, preventing water from coming in the bottom, even with the ball valve open...and when you open the vent, the air is displaced out the vent by water coming up from underneath...so the tanks will 'gravity fill' without even using the pump. Then when you close the valve, the water won't come out, even when you pull the boat out of the water, because of the vaccum created by closing the vent. If the tanks are full and the boat is out of the water and you open the valve, the water gets displaced by air, and the tanks drain... this 'closed' system wouldn't work if the overflow is always open. What am I missing?

Also, where can I get one of them fancy blue handles?

**SoldTheBayliner** · 08-23-2011, 01:32 PM

Oh, and I do mainly want the ballast for surfing. Wakeboarded behind the boat for the first time yesterday, and there was quite a bit of wake to keep me busy improving for a while...but I want to have the option, and I definitely want to be able to fill it for surfing.

**SoldTheBayliner** · 08-23-2011, 03:03 PM

Originally posted by mastercard View Post

On my boat, which I believe is all original, both ballast tanks fill from a single intake thru one valve, thru one pump and then a "Y" or "T" to the tanks. I leave the the vents closed while filling but I do open them while draining. When one tank fills up before the other just plug the thru hull overflow, forcing the water to the other tank and close the ball valve when done. It isn't the best system for sure and I do plan on upgrading but i'll deal with it for now. Hope this helps.

This is exactly what i needed to know.... On yours, does one tank fill completely before the other one even starts??? Or do I have something plugging the vent on the tank that won't fill if this is happening? I basically got one tank full and couldn't fill the other one...but didn't know I could just plug the overflow and the water would divert...but I guess it wouldn't divert if the vent was closed/clogged. Right?

**SoldTheBayliner** · 08-23-2011, 03:17 PM

er wait...how is it possible that yours are filling with the vents closed? I thought that couldn't happen.

**mastercard** · 08-23-2011, 11:46 PM

The tanks will fill with the vents closed, the displaced air will be expelled thru the overflows. The vents come into play when you pump out because the check valves on the overflow lines prevent air from coming back in. Your ballast tank level indicators may not work correctly so dont rely on them. As for my tanks, I think they both fill at the same time to a point which is when I help it out a bit by plugging the overflow. My boat has three batteries on one side so you can guess which side fills up first. When I first started using my boat I had a dirt dobber nest in the vent and a check valve flapper that was sealed shut due to the previous owners liberal application of pipe dope, which caused one tank not to fill so you may want to check for that as well. Check valves can be disassembled. Use a hair dryer or heat gun to get the hoses soft enough so you can slide them off of the barb fittings. As for the valve, the stem that the handle attaches to is rectangular, when the stem is 90 degrees to the bore of the valve it is closed, inline with the bore it is open. You will probably have to buy a new valve to get a handle. You can get a ball valve at any oil field supply or hardware store and are usually affordable, or you can get creative and make one. Pull the back seat off and take out the boards around the engine, get a flashlight and crawl down in there and look around just to get familiar with everything. You will find that there are two pumps attached to your ballast plumbing, one for filling and one for emptying. These pumps are for the most part inadequate and a lot of boat owners on here have been switching to the flexible impeller type pump which is reversible and more appropriate for the application. Jabsco seems to be the most popular brand, there are other manufacturers as well.

**SoldTheBayliner** · 08-24-2011, 11:07 AM

Thank you again... so, what prevents the tanks from filling when the ball valve/seacock valve is open? I thought the closed vents prevented this because they held the air in the tank...but if that air can be displaced out of the overflows, then the tanks should fill slowly anytime the boat is in the water with the ball valve open because the air can escape out of the overflows. ...only this doesn't seem to happen.

**mastercard** · 08-24-2011, 06:34 PM

[/QUOTE]" then the tanks should fill slowly anytime the boat is in the water with the ball valve open because the air can escape out of the overflows. ...only this doesn't seem to happen."[QUOTE] Don't think I can help you with that one.

1st of many questions... Where is my seacock valve? 2000 Super Air

1st of many questions... Where is my seacock valve? 2000 Super Air

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