The on/off switch will be the most visible to the user. It will be mechanical so it needs to be pretty robust to last twenty years. The I-R sensor to ...heck the presence of the cup is basically all solid state. Getting one sufficiently durable to last twenty years might be a little tricky. A good electrical engineer could answer that question.“The water sensor is just a float that can trip a simple switch. Since it has moving parts, it will be a little expensive to get one that will stand up to. "Bun, c'mon, we have time yet. What's the rush?" Her temper roiled, her tears welled, but, he did not see them, as usual marching ahead of her.He never saw nor talked to Bunny again the final 4 years of his life.His mother requested that his remains be brought back to Kansas for internment. She'd kept his c***dhood home immaculate and ready for that day when he'd leave the Corp. and return.The Pyles accompanied the casket back and on an oppressively humid Kansas day his Sergeant was laid to. I started fucking slowly rhythmically taking out my cock from her cunt up to knob and sending back in.. Gradually increasing the speed like a railway engine piston each time I forced my cock sound thup thup thup thup thup Fucking fucking with controlled movements in and out in and out in-out In out, I took hold of her long single plait; with one hand and with other hand holding on her midriff – fucking her – I was riding her. After sometime we both orgasm her pussy was flowing with hot juices. I am mourning. Aaaaaaaaaaaaa. He now concentrating more in my ass hole. He took some sweet and applied in my ass hole. Started licking the ass hole along with the sweet together. While licking, he tried to insert his finger into my ass slowly.Check out indiansexstories dot net for more exciting and erotic stories.I told it is hurting. He gave me an injection in the hand and told to wait for two minutes, your pain in the ass will be over. As he said after two minutes, my pain in the ass was over.