whats wrong with my pea soup?

I usually use the soaking method before cooking them. Here's what I do with split peas. It helps them to cook faster. I usually rinse the peas and take out the ones that are not green or yellowish. Then I add enough water in a pot to cover them and let them boil for at least five minutes. After that, you let them sit for an hour without the flame on underneath them. When you are ready to add them to your soup, which I usually have a left over ham bone I cook down first, I then add the split peas to that and allow them to cook further which will soften them in about an hour and half or two depending upon how high a flame you have on under the pot. I like to slow cook my pea soup for maximum flavor. Additionally, if you see the water level in your soup dwindling, it is a good idea to add more water since the split peas need water to cook properly too.