Just wondering if anyone knows where I can buy one of those birthing pools that I can fill a week before due date and it will stay heated. We only have a small boiler so last time it took 3-4 hours to fill and my mum and husband had all the hobs on and kettles filling and refilling. Bit farcical. As this is my second home birth I'm worried that I won't have that long and would like to have the pool up and ready. Does anyone know where I can buy one of those you can set up a week before and keep heated?