To change a poopy pull up diaper you can either tear the sides of the pull up or pull the pull-up diaper down and then wipe the child's bottom as you would when changing a regular diaper.
I've always just torn the sides of the pull-up diaper and always remove the pants or clothes to prevent possible poop on the clothes and sometimes I would need to shower my child if they were really poopy.
Then just slide a new fresh pull-up on the child.
To roll up a pull up diaper you can fold it like a regular diaper and tie the side together.
Some Pull Up diapers may have a tab that you use to secure the rolled up pull up diaper as well or you can simply just toss the pull up diaper in the trash or put it in a grocery bag to dispose of.
It is okay to reuse a dry pull-up as long as it is not dirty or sweaty.
I've reused some dry pull ups on my kids for at least one day as long as they were clean but if they were sweating and sweat got on the pull up I would still throw it out and put a new pull up on my kid.
Diapers hold more pee than pull-ups as pull-ups are meant to catch small pee accidents when a toddler or child is learning to use the toilet.
A diaper holds more pee as they are meant for children and toddlers who are not toilet trained and use the diaper instead so the diaper needs to hold more pee.
Kids do feel wet in pull-ups when they pee in them as they are designed so that the kid feels some wetness and has an incentive to potty train and use the toilet.
Disposable diapers do not feel as wet as they are more absorbent so the child doesn't feel wetness but pull ups are designed to hold less pees so they feel more wet.
Some brands of pull ups do run small and some brands of pull ups run larger.
I find that Pampers Easy Ups or Parents Choice Pull Ups run smaller than Huggies Pull Ups which run a bit larger.
The same is true for different brands of diapers as Luvs tends to run a bit smaller in size than Pampers diapers of the same size.
The biggest size in pull-ups is a size 5T to 6T which is for weights of 46 lbs to 60 lbs.
The 5T to 6T pull-ups are equal to the size of a size 7 diaper.
Pull Ups are gender specific and come in girls pull ups and boys pull ups versions.
However a boy can wear girls pull ups and a girl can wear boys pull ups if needed.
The pull ups for boys and girls are basically the same but with different colors and designs to cater to boys or girls.
Pull Ups are meant for holding a little bit of pee that occurs during an accident while the child is potty training so they will leak if flooded too much.
If your child is not potty trained or is wetting the bed heavily then regular diapers are a better option than pull up diapers.
My 5 year old who wets the bed started wearing pull ups at first for his bed wetting but they would leak so I started having him wear regular tape on diapers which are the Gentle Steps size 7 diapers.
The Gentle Steps size 7 diapers are very absorbent and are designed to fit older kids and he never has a wet bed in the morning.
He says he's more comfortable in the Gentle Steps size 7 diapers than he was in the Pull Ups.
Pull Ups are also more expensive than regular diapers are as well.