Self resetting suffocating traps(No SAND)(Please Comment)

Hello every one
Today i will be releasing my new self resetting suffocating traps(no sand,Yay!)
One of the traps involves drowning the player and the other involves suffocating
If you plan to hook these up to a mob farm,which they work well with do not use the water one for aggressive mobs, furthermore only tall mobs will work(skeletons,Medium and big slimes,creepers,zombies,cow,sheep,lava slime,blaze,ghast not recommended though,and pig zombiemen)
Pigs,chickens, small slimes,or spiders will not work(not sure about spider jockey though)
Only cows work in the drowning trap
All mobs work in the suffocating one
This work really well with SMP to because you kill pretty quickly and can be disguised as a cave with stone looks
With the schematic you can change the block type of the trap,default is stone bricks
I really hope these work well for you
and I hope you die in them to >:-D
-Gamecube47
PS. Some of the signs might be misspelled from me rushing