Yes. Diastema. What bothered me about her food packing was when I would go up there with a rubber glove and using my finger to get out the pack and noticed it stinks a wee bit. So thinking best to get it out if easy enough. Vet confirmed always best not to have food packing.
I’m sorry about you losing your guy. I know how that feels and it sucks.
I just picked one but I think I got mine from Valley Vet ( and it didn’t cost that much). There are different sizes. I got one of the smaller ones because my hands are small and to operate a syringe or the one drench syringe you have I would have to use both hands.
With the above type of gun, it is easily filled by squeezing the handle and sucking up the water.
My horse had a slab that fractured off a tooth that was packing food in the cavity.
I told the vet my horse was fine with the hose. I guess she changed her mind after I bragged on her because the next day she would not open her lips for love nor horse cookies and we both ended up soaking wet on a cold windy November day so I headed online and got the drench gun. Easy peasy and she tolerated the gun just fine.