American Standard Duel Flush how to winterize

[Tygerant]

We have American Standard duel flush which have worked well in our home and have another one I want to install where is has to be winterized 5-6 months out of the year. Normally we turn off water drain tank by flushing then remove more from tank with suction tube (kids water squirt gun) then add rv antifreeze to tank, float cup and bowl. Will these duel flush valves winterize ok? I can't see into valve to know if there is remaining water left. If not which do you recommend that flushes well, elongated,water use isn't an issue. Thanks LT Grant

 

[Terry]

I would think that leaving the tank empty but pouring the RV anitfreeze in the bowl would be enough.