
A lovely couple who had a pup from my last litter had a terrible time housetraining as they had inadvertently allowed accidents to happen. My breed is usually very quick to be clean!
Their last dog had lived to 15, they had indoor cats so couldn't leave the back door open, and their living room was at front of the house and way out right at the back,,hence the accidents. they were also concerned at the frequency of weeing.
I told them about every hour on the hour and after waiing playing or eating, and they were flabergasted. They had her checked for bladder infection (which she didn't have), as she seemed to go 20 times a day, and dash around and drink a lot! they just found that by the time they realised she needed out, she had already gone, as it took too long for them to take her out. By 5 months they had it sorted, but the carpet needed a proffesional cleaning.
For the above reason it is most sensible to limit the pups access to the house. Keep it in an area like the kitchen, when you cannot watch it like a hawk. One of my puppy owners was proud to say that from day one her Pup never did a no 2 in the house and only had the odd wee accident the first week, but it was her vigilance that created this happy situation, and the pup learnt what was required very quickly.
By contrast I helped out with the transfer of a pup of 10 months from its first home. she thought the crate was the place to go, as she had been shut in it all the time, and will go just anywhere she happens to be. I understand the person who now has her has had terrible problems in this respect!