s 6 Power to invest in land subject to drainage charges.
A trustee having power to invest in the purchase of land or on mortgage of land may invest in the purchase or on mortgage of any land notwithstanding the same is charged with a rent under the powers of . . . the Landed Property Improvement (Ireland) Act, 1847, or by an absolute order made under the Improvement of Land Act, 1864, unless the terms of the trust expressly provide that the land to be purchased or taken in mortgage shall not be subject to any such prior charge.