* Sowl-ach
The "s" is pronounced like the "s" in "sun".
The "ai" is pronounced like the "ai" in "sail".
The "l" is pronounced like the "l" in "light".
The "ach" is pronounced like the "ach" in "loch".
So, the full pronunciation is "Sowl-ach" with a slight emphasis on the first syllable.