Hello,

I´m with difficulty to make total vaccum.

I´ve tried 3 times, with 3 diferent moulds, and never achieved total vaccum, there´s always a leak.

I´ve checked the gum tape several times, and nothing.

So i´ve tried with a Trough Bag connector at the vaccum line, and  the feed line without connector, only the pvc hose with gum tape.

The result was the same, so i decided to make some tests.

First test:

With the Trough bag connector closed, i´ve switched on the pump, and when the gauge indicator got to the end, i´ve closed the pump valve, and then switched off. The gauge indicator moved, so there is a leak somewhere between the Trough bag connector and the pump.

There´s a few fotos taken with 2 minutes between them:

http://i675.photobucket.com/albums/vv112/pedcrist/P8060081.jpg

http://i675.photobucket.com/albums/vv112/pedcrist/P8060083.jpg

http://i675.photobucket.com/albums/vv112/pedcrist/P8060085.jpg

http://i675.photobucket.com/albums/vv112/pedcrist/P8060086.jpg

http://i675.photobucket.com/albums/vv112/pedcrist/P8060088.jpg

http://i675.photobucket.com/albums/vv112/pedcrist/P8060089.jpg

http://i675.photobucket.com/albums/vv112/pedcrist/P8060091.jpg

Second test:

With the Trough bag connector closed, i´ve switched on the pump, and when the gauge indicator got to the end, i´ve clamped the vac hose between the Trough bag connector and the catch pot, closed the pump valve, and then switched off. The gauge indicator moved not so fast as the first test, but moved, so there still´s  a leak.

There´s a few fotos taken with 2 minutes between them:

http://i675.photobucket.com/albums/vv112/pedcrist/P8060092.jpg

http://i675.photobucket.com/albums/vv112/pedcrist/P8060093.jpg

http://i675.photobucket.com/albums/vv112/pedcrist/P8060094.jpg

http://i675.photobucket.com/albums/vv112/pedcrist/P8060095.jpg

http://i675.photobucket.com/albums/vv112/pedcrist/P8060096.jpg

http://i675.photobucket.com/albums/vv112/pedcrist/P8060097.jpg

I don´t know what´s happening, if someone know, please give me a help.

Another issue: When i connect the vac hose to the silicone connector, i´ve got to cut it to be more thin, otherwise the tube won´t fit in the hole with the bag thickness.

Thanks,

Pedro

I have a suspicion what this could be. (Also a note to Easycomposites!!)

The connector on the catchpot, the black cable throughpass clamp where the resin line enters the catchpot, that fitting is installed with a piece of cut off silicone hose, at least on mine it was.

It is not the correct seal for the application and it does in deed not seal.

I went to my o-ring kit and chose the appropriate size, can measure it for u if you dont have a kit (very affordable and useful in the house) i put the o-ring on there and gave it a very slight tightening with a wrench. Only light cos its made of plastic. Seals perfectly. That pump valve should be fine. Try the connector!

cheers