Sorry I know this is a potty training thread but I can;t work out where else to put this and as you are all potty training you surely have views on nappies...
My 5mo dd has a swimming costume with a reinforced bum with tight elastic to keep stuff in and the last two times we went swimming she had that over a swim nappy. I've run out of swim nappies though and they are expensive so I just wondered - can I put a normal nappy on underneath or will it explode?
Do you mean that her cossie has a built in swim nappy(Terry towelling inside) ? If so, you don't need an extra swim nappy. Failing that you can buy reusable swim nappies (I've used one weekly with dd for nearly a year so they work out pretty economical) Or you can often get cheap packs of swim nappies from home bargains if you have one of them near you
No, you can't use a normal nappy, it will soak up all the water in the pool & become HUGE! Apparently swim nappies are only designed to hold poo in, not wee - someone at DD1s lessons had tried to save time by getting her DC into his swim kit at home, but he did a wee & it made the car seat all wet!
Also, part of the T&C of our swim instructor using the pool is that all the kiddies use the "double nappy" system, so you might not be allowed to swim if you don't have both on.