Tuesday night's second-round tie at Plainmoor was called off due to a waterlogged pitch, with the clash now rearranged for next week.
Mansell was due to start in midfield alongside the fit-again Damon Lathrope but admits were the game to have been given the green light, it would have played havoc with the club's pitch for the rest of the season, potentially hampering Torquay's promotion bid.
"It's the first time since I've been at the club that we've ever had a match off because Plainmoor has been waterlogged," Mansell told the Western Morning News. "We've had a few off because it's been frozen, but that pitch can soak up some serious water. But we've just had so much rain lately that it wasn't a surprise when this game was off.
"The thing is that we're trying to play a passing game, and you need a good surface to do that. What you do on the pitch now affects not just the next match, with Accrington here on Saturday, but three or four months down the line.
"I remember in my first year here (2006/07), we played a game when Lubos Kubik was manager when we should never have played and it ruined the pitch for the rest of the season. We've got a new groundsman coming in next week and I don't think he'd want to walk in and find a pitch that's in bits."