And what are the advantages over corneys that cancel all of these disadvantages
they never leak, no orings,theres no dip tubes to clog,theres no sealing the lid,theres no need for a brush oxiclean cleans everything..Im sure others have dryhopped in one,oak chips are for secondary,can swap for a commercial keg when you choose....superior in everyway.If corneys were better every bar and endless startup microbrew would use them and dont
some of us choose to dry hop and add oak and fruit in the keg. That's our secondary.
And: NO. Sanke kegs are no different - serving spear, neck and valve, never mind adaptors and serving lines will clog/leak if you have any substantial amount of particulates in the beer. Adaptors and line connectors will leak just as much as gas/beer connectors, and honestly, if you don't have common sense to figure out how to seal a lid on a corny, you have bigger problems that Sanke will never solve.
Unless you only use your kegs for super-clean, filtered beers - which is what commercial beers are. So they may be perfect for commercial brewery distribution (as in "idiot proof"), but terrible for homebrewers like me who like to experiment and tweak and dry hop their IPAs and add fruit and oak and coco nibs to their beers - in kegs.
So bottom line - if you filter your beers, never ferment in kegs, never dryhop in kegs, never add oak or fruit, ALWAYS filter your beer and want large >10G vessel (even though they are also available in 5G size) with simple serving system for "get the keg and serve it in the bar" that nobody who works a low-wage labor in a bar can mess up too badly while hooking it up while drunk, then - YES, Sanke is just the right vessel for you.
But if you are a home brewer, and maybe you want to experiment with your beer, and maybe you don't filter and you actually don't trust Oxyclean x24 hours strategy blindly ( I own like 10 different PET fermenters and let me tell you - some dirt specks surprisingly will stick for a long, long time, but if you can't see it, you can't clean it) - I would strongly recommend corny kegs, as they have all the advantages and none of the downside in my experience.
Cheaper, easier to use, easier to clean, and far, far more versatile for home brew use. Some may need to use some common sense about sealing them but I have never had any problems and like anything else in home brewing, it's about skill, logic, common sense and maybe a little experience in being hands-on person.
Also, there really needs to be a space following a coma and a period. Just a common courtesy for other people reading your posts.