@Raymo853 167912 wrote:
Lezyne has a new design hose that no longer backs out valves. It is compatability with all the older pumps.
I put sealant through valve stems every month in every tire. Why? Some tires are so hard to seat and sealant dries up in a few weeks.
On their portable/hand pumps? I’ve tried a few Lezyne heads on floor pumps; the more traditional double-barelled head actually works well, but their other push on or “half-twist” heads worked terribly for me.
I use the Silca push-on head on my Lezyne dirt drive now.
For me sealant lasts closer to a few months, though it probably depends on a number of factors (?)