Mateen Charbonneau, Sheikh Mateen Joshua Charbonneau achieved a certificate from Harvard University in Islamic Studies. He undertook Howza classes under esteemed scholars since 2013 and has been teaching at Imam Mahdi... Answered 3 years ago

If there is no water available then one should make tayyamum in place of ghusl. If there is water available then one must perform ghusl janaba in order to offer salat.