"the level when cold will show a gap between the water line and the bottom of the cap.When it's hot (130F) the expansion of the fluid will make the level about the same as the bottom of the cap"
Freeman Lowell's Discussions
Century cap replacement and top up questions
5 Replies
Hi, I just received my cap replacement for my Century 100 (thank you Duane K!) and am in the process of preparing (i.e., painting) it for install. My original cap was cracked at the top which I…Continue
Started this discussion. Last reply by Claude J Sep 15, 2024.
Freeman Lowell's Page
Latest Activity
"Century cap lid print"
"This label popped out of the cap too when I opened it up. "
"Thanks. I realized after I posted this that the replacement cap came with an o-ring already installed so I was doubling up and hence the gap :)"
"Thanks Arne! Did you just use distilled water?"
"Yes you can top it up but I can't exactly say whats the maximum. I'm using the bottles for Mathmos lamps of similar design and identical bottle shape so I just put an Astro cap on top and Filled until the gap was gone."
Century cap replacement and top up questions
Hi, I just received my cap replacement for my Century 100 (thank you Duane K!) and am in the process of preparing (i.e., painting) it for install. My original cap was cracked at the top which I believe lead to evaporation since I’ve owned it (about 5 years). I’m assuming it was just water that evaporated so I’m wondering if I can just top it up to the bottom of the cap with distilled water and how high I should fill it. The cap has been cracked like this for at least 5 years. Any help or tips…See More
"First post here. Just wanted to say I got my replacement cap today and it fits perfectly (without the o-ring). Do you know if the o-ring is critical for creating a seal (I do have the o-ring but it seems to create a gap at the top)? I’m going…"
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- At 12:50pm on August 17, 2021,
Claude J said…
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