I have a 70 A/S and fiddled around three times with my inline filter (like yours), it had an ongoing seepage problem after sealing it three times, I gave it a toss and re plumbed it out of my life. We carry our own bottled water for travel trips, I have a Berky Light filter at home and bought three 2 gallon bottles. I tow with a Suburban and take all three with me for drinking water,leaving them in the back of the Burb until I need them.
The rest of my usage I don't worry about, were not drinking or cooking with it.
Thats my opinion.
Favorite Bumper sticker:
Yes, this is my truck...
No, I won't help you move....