Hi Sussala! Welcome to Soapaholics Anonymous!
You can dilute the soap, but be sure to check the ph level before you
use it, just to be on the safe side. (aka: the zap test or use phenol)
I'm a bit confused reading your message as to which form of lye you used?
If you used sodium hydroxide (NaOH) then diluting it may result in what I
not-so-affectionately refer to as Snotty Soap. It's still soap, but it may have
a slick, or "slimy" texture as the NaOH is trying it's best to turn it into bar
soap, while the dilution water is trying to keep it liquid.
If you used KOH, which is intended for liquid soap, the next step is to dilute
with water (preferably distilled or filtered imo) and Voila! Liquid Soap!
The paste will take on different characteristics depending on what oils or
additives you've used. Some pastes become tougher than two-year-old
caramels. Others may be must softer and easier to dilute. Recipes with
lots of coconut oil dilute with much less water than ones with predominately
olive oil.
Here's a link to a site that helped me a lot when I made my first few
batches. Now I can ruin them all by myself! :mrgreen:
http://chickensintheroad.com/house/crafts/how-to-make-liquid-soap/
P.S. If jcandleattic or green soap or any of several other liquid soapers
stop by, they will have much better info than me, so take their word for
things over mine.