We recently removed a large section of block paving from our back garden and laid turf. We had help from someone who does this kind of thing for a living. However, after having removed the hard core we were abandoned and left to put the soil down ourselves having never done this before. We could tell we weren't doing a great job but had to carry on regardless as the turf needed to be put down that day. Once we'd laid the turf it looked slightly uneven but we thought we'd done an ok job. That was 8 days ago. We've not walked on it until today and it's quite squelchy and feels like it's sinking in multiple places. Is there anything we can do to rectify this without starting all over again? We were advised to water it twice a day. Could this have anything to do with it?