Because for a while we got "free" electricity on Sundays we used a two way 13amp adaptor on a single socket outlet to run washer and drier. This resulted in the adapter heating up when both machines were running. I've now connected the drier to a different 13amp socket outlet above the counter but this looks like a "lash up". So my question is where can I find a two way adaptor that will comfortably take the load? Or do I have to have a double socket outlet fitted?