Re: IN or OUT (Boat Plugs )
Mark, sorry to differ but the flip top plugs were around and used as transom plugs way before the twist type was invented, so to speak, or became popular. I can remember when the lever type was the only kind you could find and were the only ones that came with a new boat.<br /><br />Besides, as I stated above, the lever type really is actually a twist type, only difference is you have the lever that you can close or open to install or remove the plug. The only difference between the two plugs are one has the T-handle and the other has a lever handle. Other than that, the are exactly the same. Internals are the same, they are basically made the same, and they operate the same internally as far as how the rubber expands to make the seal.<br /><br />When installing the lever type, you need to twist it some before closing the lever in order to make the rubber expand enough to make a good seal. That is where most people have problems with them leaking and such. You can make the lever plug as tight by twisting it as you can with the T-handle twist.<br /><br />Now it makes more sense to maybe use the twist type, especially if you install it from the outside, in case of hitting an obstacle or something that may flip the lever to the open position. But for inside installations there is virtually not much difference between the two. It can be argued that the lever type is easier to install on the inside of the boat in hard to access places.<br /><br />Now I have to say that most of the boats that I have been associated with have been aluminum flats, except for my fiberglass 21 foot Hondo jet with a 455 olds. It took a screwed pipe plugged installed from the inside.