check valves

Big Carni · Posted: Apr 16, 2007 10:44 am Post subject: check valves

I'm trying to finish up and buy all my parts for the ballast i'm installing and was wondering what type of check valves people were using. The spring loaded ones seem like they would cause way to my resistance on the line for a Tsunami 1100 pumps. The swing valves seem the best, but how well do they work if you don't mount them vertical? Does water slowly leak out?

P hat in Cincy · Posted: Apr 16, 2007 4:54 pm Post subject:

As you stated, swing c/v offer less resistance.

You can mount them horizontal or vertical. When mounting horizontal you have to make sure the flapper hangs down. There are orientation markings on the valves. I'm sure there are options for the water to slowly leak out, but you minimize this by trying to make your empty outlet higher than your bag.

Don't forget to take into account the pitch of the boat while taking off/on plane. That's probably why you see most outlets forward of the ballast tanks/bags.

Big Carni · Posted: Apr 17, 2007 8:12 am Post subject:

this question is not related to the check valves, but i'm wondering if there is anyone else that did a ballast for a MC v-drive and connected a manifold to the thru hull. If so, where in the heck did u put it? I thought I was going to put in right next to my center drain so I could just unscrew that black cap, but there is NO room in there. Other then cutting a new spot in the floor, i don't see a good spot.

wesgardner · Posted: Apr 19, 2007 6:05 am Post subject:

My buddy and I did one in his 205V...we installed the thru-hull on the port side in the engine compartment - it was very tight...plan on "swing room" for tightening the necessary fittings.

I may have to install the thru-hul, hook an elbow and then use a short piece of hose to connect the manifold. This allows pre-fabrication of the manifold outside the boat (and removal if something goes wrong or needs replacing)

My boat's alot different but uses this connection - just under the check valve is where mine has the hose "splice"

skeeler · Newbie Joined: 11 Aug 2005 Posts: 23 City: Omaha

Big Carni · Posted: Apr 25, 2007 8:00 am Post subject:

I did find some of the valves at Home Depot, but they were 1.5" and bigger. They had both spring and swing. The prices were the same w/ s/h ordering them from the plumbing store online. This way you don't have to deal w/ someone that has no f'n idea what you want when you try to expain it. It will just show up at your door.

http://www.plumbingsupply.com/pvccheck.html

Big Carni · Posted: Apr 25, 2007 8:05 am Post subject:

wesgardner · Posted: Apr 25, 2007 9:05 am Post subject:

Big Carni,

That's the supply house I used for checks...

I'm always surprised at how much room there ISN'T in these boats...however, once the system is set up and tested, you COULD put it in a relatively inaccessible location - very little goes wrong...

dizzlestoy · Soul Rider Joined: 26 Jul 2007 Posts: 305 City: dallas

might wanna look for a brady valve also in your sump pump section of lowes..
my .02

85sn2001 · Outlaw Joined: 13 May 2004 Posts: 114 City: Nor*Cal

I have a 98 225vrs. I know exactly what your going through.

On mine the corner cushions aren't easily removed unless you move another cushion next to them. I took out the old cooler tray in the starboard back corner and put my manifold under that cushion. It was the only place with enough room for RV gate valve and 4 aerators. I put an emergency shut-off valve on the port side accessible from the middle when the seat cushion and tray that goes over the tranny is removed. Then ran 1.25in tubing above the tranny, cut a whole in the seat base next to the gas line, and ran it to the manifold.